The many lives of theoretical physicist Elsie Hannaway have finally caught up with her. By day, she’s an adjunct professor, toiling away at grading labs and teaching thermodynamics in the hopes of landing tenure. By other day, Elsie makes up for her non-existent paycheck by offering her services as a fake girlfriend, tapping into her expertly honed people-pleasing skills to embody whichever version of herself the client needs. Honestly, it’s a pretty sweet gig—until her carefully constructed Elsie-verse comes crashing down.

Belly measures her life in summers. Everything good, everything magical happens between the months of June and August. Winters are simply a time to count the weeks until the next summer, a place away from the beach house, away from Susannah, and most importantly, away from Jeremiah and Conrad. They are the boys that Belly has known since her very first summer—they have been her brother figures, her crushes, and everything in between. But one summer, one wonderful and terrible summer, the more everything changes, the more it all ends up just the way it should have been all along.

Hannah Brooks looks more like a kindergarten teacher than somebody who could kill you with a wine bottle opener. Or a ballpoint pen. Or a dinner napkin. But the truth is, she’s an Executive Protection Agent (aka "bodyguard"), and she just got hired to protect superstar actor Jack Stapleton from his middle-aged, corgi-breeding stalker.

Like an avenging, purple-haired Jedi bringing balance to the mansplained universe, Bee Königswasser lives by a simple code: What would Marie Curie do? If NASA offered her the lead on a neuroengineering project—a literal dream come true after years scraping by on the crumbs of academia—Marie would accept without hesitation. Duh. But the mother of modern physics never had to co-lead with Levi Ward.

Hi, my name is Bree Camden, and I’m hopelessly in love with my best friend and star quarterback Nathan Donelson (so is half of America, judging by the tabloids and how much the guy dates). The first step is admitting it, right? Except, I can never admit it to him because he clearly doesn’t see me that way, and the last thing I want is for things to get weird between us. Nothing but good old-fashioned no-touching-the-sexiest-man-alive platonic friendship for us! Everything is exactly how I like it! Yes. Good. (I’m not crying; I’m just peeling an onion.)

Everyone says opposites attract. And they must be right, because there’s no logical reason why I’m so drawn to Colin Fitzgerald. I don’t usually go for tattoo-covered, video-gaming, hockey-playing nerd-jocks who think I’m flighty and superficial. His narrow view of me is the first strike against him. It doesn’t help that he’s buddy-buddy with my brother. And that his best friend has a crush on me. And that I just moved in with them. Oh, did I not mention we’re roommates?

Ama Torres is an optimistic wedding planner who doesn’t believe in marriage. But weddings? They’re amazing. Elliot Bloom is a brooding florist who hates owning a flower shop…until a certain bright-eyed, donut-loving workaholic shows up at his door. Once upon a time, they collaborated on events by day, and by night, Ama traced the intricate flower tattoos etched along his body. Then Ama shattered his heart and never spoke to Elliot again. Now they’re working on an event that could make or break both of their careers—except neither of them has gotten over what happened two years ago.

Malibu: August 1983. It’s the day of Nina Riva’s annual end-of-summer party, and anticipation is at a fever pitch. Everyone wants to be around the famous Rivas: Nina, the talented surfer and supermodel; brothers Jay and Hud, one a championship surfer, the other a renowned photographer; and their adored baby sister, Kit. Together the siblings are a source of fascination in Malibu and the world over—especially as the offspring of the legendary singer Mick Riva. The only person not looking forward to the party of the year is Nina herself.

Welcome to the most tumultuous summer of the 20th century. It's 1969, and for the Levin family, the times they are a-changing. Every year, the children have looked forward to spending the summer at their grandmother's historic home in downtown Nantucket. But like so much else in America, nothing is the same.

Poppy and Alex. Alex and Poppy. They have nothing in common. She’s a wild child; he wears khakis. She has insatiable wanderlust; he prefers to stay home with a book. And somehow, ever since a fateful car share home from college many years ago, they are the very best of friends. For most of the year they live far apart—she’s in New York City, and he’s in their small hometown—but every summer, for a decade, they have taken one glorious week of vacation together.

On a perfect June day, Vivian Howe, author of 13 beach novels and mother of three nearly grown children, is killed in a hit-and-run car accident while jogging near her home on Nantucket. She ascends to the Beyond where she's assigned to a Person named Martha, who allows Vivi to watch what happens below for one last summer. Vivi also is granted three “nudges” to change the outcome of events on earth.

Harriet and Wyn have been the perfect couple since they met in college—they go together like salt and pepper, honey and tea, lobster and rolls. Except, now—for reasons they’re still not discussing—they don’t. They broke up five months ago. And still haven’t told their best friends. Which is how they find themselves sharing a bedroom at the Maine cottage that has been their friend group’s yearly getaway for the last decade.

Laurie is sure love at first sight doesn't exist anywhere but the movies. But then, through a misted-up bus window one snowy December day, she sees a man who she knows instantly is the one. Their eyes meet, there's a moment of pure magic...and then her bus drives away. Certain they're fated to find each other again, Laurie spends a year scanning every bus stop and cafe in London for him. But she doesn't find him, not when it matters anyway. Instead they "reunite" at a Christmas party, when her best friend, Sarah, giddily introduces her new boyfriend: the man from the bus.

Gwen Castle's Biggest Mistake Ever, Cassidy Somers, is slumming it as a yard boy on her idyllic Nantucket-esque island this summer. He's a rich kid from across the bridge in Stony Bay, and she hails from a family of fishermen and housecleaners who keep the island's summer people happy. Gwen worries a life of cleaning houses will be her fate too, but just when it looks like she'll never escape her past - or the island - Gwen's dad gives her some shocking advice.

Seventeen-year-old Reagan seems like the perfect small-town girl. Dubbed a saint by her older brother, Lincoln, she serves the community, makes straight A’s, attends church, spends her summers working with special needs children, and is a piano-playing prodigy. When you’re the daughter of the mayor and the police chief in a sleepy Kansas town, toeing the line is easier than the alternative. That is, until her brother’s best friend changes the rules.

The Garretts are everything the Reeds are not: loud, numerous, messy, affectionate. And every day from her balcony perch, 17-year-old Samantha Reed wishes she was one of them...until one summer evening, Jase Garrett climbs her terrace and changes everything. As the two fall fiercely in love, Jase's family makes Samantha one of their own. Then in an instant, the bottom drops out of her world and she is suddenly faced with an impossible decision. Which perfect family will save her? Or is it time she saved herself?

Eden Monro came to California for a summer of sun, sand and celebrities - what better way to forget about the drama back home? Until she meets her new family of strangers: a dad she hasn't seen in three years, a step-monster and three stepbrothers. Eden gets her own room in her dad's fancy house in Santa Monica. A room right next door to her oldest stepbrother, Tyler Bruce. Whom she cannot stand. He's got angry green eyes and ego bigger than a Beverly Hills mansion. She's never felt such intense dislike for someone.

Ramona was only five years old when Hurricane Katrina changed her life forever. Since then it's been Ramona and her family against the world. Standing over six feet tall, with unmistakable blue hair, Ramona is sure of three things: She likes girls, she's fiercely devoted to her family, and she knows she's destined for something bigger than the trailer she calls home in Eulogy, Mississippi. But juggling multiple jobs, her flaky mom, and her well-meaning but ineffectual dad forces her to be the adult of the family.

If someone had told me a year ago that I was about to fall in love, go on an epic road trip, ride a Triceratops, sing on a bar, and lose my virginity, I would have assumed they were on drugs. Well, that is, until I met Beckham. Beck was mostly to blame for my recklessness.

Clara Shin lives for pranks and disruption. When she takes one joke too far, her dad sentences her to a summer working on his food truck, the KoBra, alongside her uptight classmate Rose Carver. Not the carefree summer Clara had imagined. But maybe Rose isn't so bad. Maybe the boy named Hamlet (yes, Hamlet) crushing on her is pretty cute. Maybe Clara actually feels invested in her dad's business. What if taking this summer seriously means Clara has to leave her old self behind?

Harper Price, peerless Southern belle, was born ready for a Homecoming tiara. But after a strange run-in at the dance imbues her with incredible abilities, Harper's destiny takes a turn for the seriously weird. She becomes a Paladin, one of an ancient line of guardians with agility, super strength and lethal fighting instincts.

In the coastal town of Alden, Maine, Hope and Jack Kelly have settled down to a life of wedded bliss. They have a beautiful family, a growing lobster business, and the Salt House - an oceanfront cottage they're renovating into their dream home. But tragedy strikes when their young daughter doesn't wake up from her afternoon nap, taking her last breath without making a sound. A year later each member of the Kelly family navigates the world on their own private island of grief.

Shortly before her 17th birthday, Emma discovers she has a long-lost twin named Sutton Mercer. She contacts Sutton, who agrees to a rendezvous but never shows up. Curious at first, Emma slips into Sutton's ultra-glamorous life, assuming her identity. When it becomes clear that Sutton is not coming back, that someone made sure she never could, Emma plunges in to investigate who could have wanted her sister gone (a fairly long list, she discovers).

Trenton Maddox was the king of Eastern State University, dating co-eds before he even graduated high school. His friends wanted to be him, and women wanted to tame him, but after a tragic accident turned his world upside down, Trenton leaves campus to come to grips with the crushing guilt. Eighteen months later, Trenton is living at home with his widower father, and works full-time at a local tattoo parlor to help with the bills. Just when he thinks his life is returning to normal, he notices Cami sitting alone at a table at The Red.

A steamy summer encounter with bad boy Jude means trouble for Lucy. Her sights are set on becoming a ballerina, and she won't let anything get in her way...except Jude. He's got a rap sheet, dangerous mood swings, and a name that's been sighed, shouted, and cursed by who knows how many girls. Jude's a cancer, the kind of guy who's fated to ruin the lives of girls like Lucy - and he tells her so. But as rumors run rampant and reputations are destroyed, Lucy's not listening to Jude's warning.

Regan's brother Liam can't stand the person he is during the day. Like the moon from whom Liam has chosen his female namesake, his true self, Luna, only reveals herself at night. In the secrecy of his basement bedroom Liam transforms himself into the beautiful girl he longs to be, with help from his sister's clothes and makeup. Now, everything is about to change - Luna is preparing to emerge from her cocoon. But are Liam's family and friends ready to welcome Luna into their lives?

Losing your ability to speak at the age of 17; it's not normal or fair. But trauma has a way of throwing normality out the window. Dani lives anything but a normal life: her sister is married to one of the biggest names in Hollywood, her best friends are rock stars, and she has more love around her than most people experience in a lifetime. But that doesn't change the fact their parents are dead, or that it's her fault. It seems her new normal is being a mute, living on the inside, unable to actually communicate on the outside.

Enemies turn to lovers in this bad boy billionaire romance with a twist. I had a plan. Finish law school. Start a job. Stay away from men like Brandon Sterling. Cocky, overbearing, and richer than the Earth, he thinks the world belongs to him, and that includes me. Yeah, no. Think again. It doesn't matter that his blue eyes look straight into my soul, or that his touch melts my icy reserve. It doesn't even matter that past all that swagger, there's a beautiful, damaged man who has so much to offer beyond private planes and jewelry boxes. But I had a plan: no falling in love.

When college freshman Rowan Michaels meets gorgeous, up-and-coming rock star Adam Everest, she knows a player like him is the last thing she needs after her ex-boyfriend shattered her heart. But she can't stop thinking about the kiss they shared on his tour bus. On the first day of school, Rowan is stunned when Adam saunters into her French class. He's soon failing miserably, and, on a whim, she offers to tutor him. But Adam doesn't recognize her as a makeup-free, glasses-clad college student.

Classic movie buff Bailey "Mink" Rydell has spent months crushing on a witty film geek she only knows online by "Alex". Two coasts separate the teens until Bailey moves in with her dad, who lives in the same California surfing town as her online crush. Faced with doubts (what if he's a creep in real life - or worse?), Bailey doesn't tell Alex she's moved to his hometown. Or that she's landed a job at the local tourist-trap museum. Or that she's being heckled daily by the irritatingly hot museum security guard, Porter Roth - a.k.a. her new arch-nemesis.

Manhattan Beach native Lovette has two rules in life. One: no surfing. Not after her brother's accident. Two: absolutely, no dating. And going into her junior year of high school, she's pretty happy with that arrangement. She has friends, her church youth group, and God to fall back on when things get dicey. But after Jake Evans walks into her life, following these two simple rules gets a lot more complicated.

Avery has always used music as an escape. But after her best friend betrays her, even her perfectly curated playlists can't help her forget what happened. To make matters worse, her parents have dragged her and her social-media-obsessed sister to a remote family camp for two months of "fun". Just when Avery is ready to give up on the summer altogether, she meets Brooks - mysterious, frustratingly charming Brooks - who just happens to be on staff - which means he's off-limits.

Lily Hopper has two more weeks until she's officially finished with boarding school. With graduation quickly approaching Lily is worried that she's somehow missed out on the fun of being in high school. So, when she receives a mysterious note inviting her to join the anonymous senior class Jester in executing the end-of-year prank, Lily sees her chance to put her goody-two-shoes reputation behind her. When Lily realizes the Jester is none other than Taggart Swell, her ex-boyfriend, she's already in too deep to back out. Lily might've dumped Tag, but she still has major feelings.

Lina is spending the summer in Tuscany, but she isn't in the mood for Italy's famous sunshine and fairy-tale landscape. She's only there because it was her mother's dying wish that she get to know her father. But what kind of father isn't around for 16 years? All Lina wants to do is get back home. But then Lina is given a journal that her mom had kept when she lived in Italy. Suddenly Lina's uncovering a magical world of secret romances, art, and hidden bakeries. A world that inspires Lina to follow in her mother's footsteps.

Meredith's family's annual game of assassin at Martha's Vineyard during a summer wedding is the perfect chance to honor her sister's legacy, and finally join the world again. But when she forms an alliance with a cute groomsman, she's at risk of losing both the game . . . and her heart.

Norah Simons’s summer road trip is going to be absolutely perfect. She’s leaving California for the first time in her life. She’s interviewing at her dream college (the place for future video game animators). And she’s reconnecting with her childhood friend, Skyler Hutton—the boy who taught her to draw, the boy she’s never forgotten about after all these years. What could go wrong? Cue the RV filled with three siblings, two moms, one bathroom, and years of memories, and suddenly this trip isn’t quite the vacation Norah was hoping for.

Seventeen-year-old Finley has only ever had one goal: to become a famous podcaster. This includes coming up with the perfect pitch to land her on her school's podcast team. But when her football-obsessed boyfriend, Jensen, decides to also try out—and uses her idea—she's left confused and betrayed.

Everything about Jessie is wrong. At least that's what it feels like during her first week of junior year at her new ultra-intimidating prep school in Los Angeles. Just when she's thinking about hightailing it back to Chicago, she gets an email from a person calling themselves Somebody/Nobody (SN for short), offering to help her navigate the wilds of Wood Valley High School. Is it an elaborate hoax? Or can she rely on SN for some much-needed help?

Everyone at the Bexley School believes that Sage Morgan and Charlie Carmichael are meant to be. Even though Charlie seems to have a new girlfriend every month, and Sage has never had a real relationship, their friends and family all know it's just a matter of time until they realize that they are actually in love. When Luke Morrissey shows up on campus his presence immediately shakes things up. Charlie and Luke are drawn to each other the moment they meet, giving Sage the opportunity to spend time with Charlie's twin brother, Nick.

After living through a dumpster fire of a Valentine’s Day, Emilie Hornby escapes to her grandmother’s house for some comfort and a consolation pint of Ben & Jerry’s. She passes out on the couch, but when she wakes up, she’s back home in her own bed—and it’s Valentine’s Day all over again. And the next day? Another horrendous V-Day. Emilie is stuck in some sort of time loop nightmare that she can’t wake up from as she re-watches her boyfriend, Josh, cheat on her day after day.