Rick's never questioned much. He's gone along with his best friend Jeff even when Jeff's acted like a bully and a jerk. He's let his father joke with him about which hot girls he might want to date even though that kind of talk always makes him uncomfortable. And he hasn't given his own identity much thought, because everyone else around him seemed to have figured it out.

Chloe Silver has always been good at looking on the bright side. Even though her parents got divorced and she's moved to a new town, she knows that she will make great friends at her new school. So when she is assigned a science project with offbeat Lucy Tanaka and nerdy Theo Barnes, they have fun creating an experiment that tests out the laws of science through different acts of kindness... officially forming The Kindness Club.

Beach-loving surfer Alberta has been the only black girl in town for years. Alberta's best friend, Laramie, is the closest thing she has to a sister, but there are some things even Laramie can't understand. When the bed and breakfast across the street finds new owners, Alberta is ecstatic to learn the family is black - and they have a 12-year-old daughter just like her.

Libby comes from a long line of bullies. She wants to be different, but sometimes that doesn’t work out. To bolster herself, she makes a card with the message You are amazing. That card sets off a chain reaction that ends up making a difference in the lives of some kids who could also use a boost - be it from dealing with bullies, unaccepting families, or the hole that grief leaves.

Grace and Ellie have been best friends since second grade. Ellie's always right in the center of everything - and Grace is usually happy to be Ellie's sidekick. But this time, it's Grace who suddenly has everyone's attention when she accidentally starts a new fad at school. It's a fad that has first her class, then her grade, and then the entire school collecting and trading and even fighting over...buttons? A fad that might also get her in major trouble and could even be the end of Grace and Ellie's friendship. Because Ellie's not used to being one-upped by anybody.

Seventeen-year-old Esme Pearl has a babysitters club. She knows it's kinda lame, but what else is she supposed to do? Get a job? Gross. Besides, Esme likes babysitting, and she's good at it. And lately Esme needs all the cash she can get, because it seems like destruction follows her wherever she goes. Let's just say she owes some people a new tree. Enter Cassandra Heaven. She's Instagram-model hot, dresses like she found her clothes in a dumpster, and has a rebellious streak as gnarly as the cafeteria cooking.

Alton Barnes loves maps. He's loved them ever since he was little, and not just for the geography. Because maps contain more information than just locations, and that's why he likes to draw maps as well as read them. Regular "point A to point B" ones, sure, but also maps that explain a whole lot more - like what he really thinks about his friends. And teachers. Even the principal. So when Alton's maps are stolen from his locker, there's serious trouble on the horizon - and he'll need some mad cartographic skills to escape it.

Cash, who loves basketball but has a newly broken wrist, is in danger of failing seventh grade for the second time. Fitch spends every afternoon playing Major Havoc at the arcade on Main and wrestles with an explosive temper that he doesn’t understand. And Bird, his 12-year-old twin, dreams of being NASA’s first female shuttle commander, but feels like she’s disappearing.

Rahul Kapoor is heading into seventh grade in a small town in Indiana. The start of middle school is making him feel increasingly anxious, so his favorite person, his grandfather Bhai, gives him some well-meaning advice: Find one thing you’re really good at and become the best at it. Those four little words sear themselves into Rahul’s brain. While he’s not quite sure what that special thing is, he is convinced that once he finds it, bullies like Brent Miller will stop torturing him at school. And he won’t be worried about staring too long at his classmate Justin Emery.

Eleanor Dross knows a thing or two about the end of the world, thanks to a survivalist grandfather who stockpiles freeze-dried food and supplies - just in case. So when she reads about a Harvard scientist's prediction that an asteroid will strike Earth in April, Eleanor knows her family will be prepared. Her classmates? They're on their own! Eleanor has just one friend she wants to keep safe: Mack. They've been best friends since kindergarten, even though he's more of a smiley emoji and she's more of an eye-roll emoji.

On the outside, Yumi Chung suffers from #shygirlproblems, a perm-gone-wrong, and kids calling her "Yu-MEAT" because she smells like her family's Korean barbecue restaurant. On the inside, Yumi is ready for her Netflix stand-up special. Her notebook is filled with mortifying memories that she's reworked into comedy gold. All she needs is a stage and courage.

Efrén Nava’s Amá is his Superwoman - or Soperwoman, named after the delicious Mexican sopes his mother often prepares. Both Amá and Apá work hard all day to provide for the family, making sure Efrén and his younger siblings Max and Mía feel safe and loved. But Efrén worries about his parents; although he's American-born, his parents are undocumented. His worst nightmare comes true one day when Amá doesn't return from work and is deported across the border to Tijuana, México.

Robert Westfall's life is falling apart - everywhere but in math class. That's the one place where problems always have a solution. But in the world beyond high school, his father is terminally ill, his mother is squabbling with his interfering aunts, his boyfriend is unsupportive, and the career path that's been planned for him feels less appealing by the day. Robert's math teacher, Andrew McNelin, watches his best student floundering, concerned but wary of crossing the line between professional and personal. Gradually, Andrew becomes Robert's friend, then his confidante.

Emilia Romero is living a double life. By day, she’s a field hockey star with a flawless report card. But by night, she’s kicking virtual ass as the only female member of a highly competitive eSports team. Emilia has mastered the art of keeping her two worlds thriving, which hinges on them staying completely separate. That's in part to keep her real-life persona, but also for her own safety, since girl gamers are often threatened and harassed.

Eliza Quan is the perfect candidate for editor in chief of her school paper. That is, until ex-jock Len DiMartile decides on a whim to run against her. Suddenly her vast qualifications mean squat because inexperienced Len—who is tall, handsome, and male—just seems more like a leader.