Gemma and Alice were born on the same day and have been devoted best friends ever since. Despite Gemma's larger-than-life personality and Alice's quieter, calmer character, the two are inseparable – until Alice has to move house, all the way to Scotland. Gemma is utterly distraught, particularly at the thought that Alice might find a new best friend. Is there anything Gem's brothers, or perhaps her Grand dad, can do to help?

Is anything bothering you? Problems in class or at home? Don't know where to turn for help? Log on to the Worry Website! Type in your worry and wait for the good advice to flow in. At least that's the plan when Mr Speed sets up his super-cool new Worry Website for the class. Holly, Greg, Natasha, and the rest feel that they've got shed loads of worries but, as they find out, sometimes the best advice comes from the most unexpected place.

I'm Sadie and I'm nearly nine. Mum's a childminder, but she doesn't have to mind me. I can mind myself, easy-peasy. Lucky for Mum, because now she's got the flu, so I've got to mind her – and help with all the babies!

Verity adores her cat, Mabel, and is desperately sad when she dies. Remembering her recent school lessons about the Ancient Egyptians, Verity decides to mummify Mabel and keep her hidden. Verity's dad and grandparents can't bear to talk about death, having lost Verity's mum in childbirth, but when they eventually discover what Verity has done with Mabel, the whole family learns that it's time to talk.

Being a sister isn't always easy ... but what's the very worst thing about your sister? Marty and her sister Melissa couldn't be more different. Marty loves her Converse trainers, playing football, hiding in her secret den and helping her dad with his DIY. But Melissa loves Justin Bieber and all things pink, girly and pretty. The sisters can manage to live together, despite their occasional scraps but then Mum tells them they have to share a room.

London, 1876. Hetty Feather is just a tiny baby when her mother leaves her at the Foundling Hospital. The Hospital cares for abandoned children - but Hetty must live with a foster family until she is big enough to go to school. Life in the countryside is hard but she has 'brothers' Jem and Gideon to play with, and together they sneak off to visit the travelling circus. Hetty is mesmerised by the show, especially Madame Adeline and her performing horses.

Alice Love is 29, crazy about her husband, and pregnant with her first child. So imagine Alice’s surprise when she comes to on the floor of a gym and is whisked off to the hospital, where she discovers the honeymoon is truly over - she’s getting divorced, she has three kids, and she’s actually 39 years old. Alice must reconstruct the events of a lost decade and find out whether it’s possible to reconstruct her life at the same time.

Lara's life looks perfect on the surface. Gorgeous doting husband Massimo, sweet little son Sandro and the perfect home. Lara knows something about Massimo. Something she can't tell anyone else or everything Massimo has worked so hard for will be destroyed: his job, their reputation, their son. This secret is keeping Lara a prisoner in her marriage. Maggie is married to Massimo's brother Nico. She knows all of Nico's darkest secrets - or so she thinks. The one day she discovers a letter in the attic....

In 1986, Eddie and his friends are on the verge of adolescence, spending their days biking in search of adventure. The chalk men are their secret code, stick figures they draw for one another as hidden messages. But one morning, the friends find a chalk man leading them to the woods. They follow the message, only to find the dead body of a teenage girl. In 2016, Eddie is nursing a drinking problem and trying to forget his past, until one day he gets a letter containing a chalk man — the same one he and his friends saw when they found the body.

Annie's heart can't be broken - or so she thinks. After a series of tragic events tore a hole through the perfect life she'd built, there's nothing left to break. Jaded and alone, she's been sleepwalking through life, with a boring job, an irritating roommate, and a serious binge-watching addiction. But she's okay with that - if you've lost everything, you've got nothing to lose, right? Polly is everything Annie doesn't need in her life - or so she thinks. But Polly is determined to finally wake Annie up to life.

To 10-year-old Jamie, his family has fallen apart because of the loss of someone he barely remembers: his sister Rose, who died five years ago in a terrorist bombing. To his father, life is impossible to make sense of when he lives in a world that could so cruelly take away a 10-year-old girl. To Rose's surviving 15-year-old twin, Jas, every day she lives in Rose's ever-present shadow, forever feeling the loss like a limb, but unable to be seen for herself alone.

Corinne’s life might look perfect on the outside, but after three failed IVF attempts it’s her last chance to have a baby. And when she finds a tiny part of a doll house outside her flat, it feels as if it’s a sign. But as more pieces begin to turn up, Corinne realises that they are far too familiar. Someone knows about the miniature rocking horse and the little doll with its red velvet dress. Someone has been inside her house...How does the stranger know so much about her life? How long have they been watching? And what are they waiting for...?

Zoe has an unconventional pen pal - Mr. Stuart Harris, a Texas Death Row inmate and convicted murderer. But then again, Zoe has an unconventional story to tell. A story about how she fell for two brothers, betrayed one of them, and killed the other. Hidden away in her backyard shed in the middle of the night with a jam sandwich in one hand and a pen in the other, Zoe gives a voice to her heart and her fears after months of silence. Mr. Harris may never respond to Zoe's letters, but at least somebody will know her story...

When accident-prone Helen Grey finds a thong stuffed into the pocket of her boyfriend's best work trousers, it's time for her to move on. His excuse that he needed to dust the photocopier and just thought that it was a rag sounds like a lame excuse. Helen's life is propelled in an unexpected direction after her best friend, Ayshe, sets her a fourteen-day, life-changing challenge. Helen receives a task everyday which she must complete without question.

Dottie and Mary forged a friendship over a bag of penny sweets when they were eight years old. They've shared everything together since then. Now, at seventeen, they're both shopgirls working at Woolworths. As they go out in the world in pursuit of love and happiness and life becomes more complicated, the simplicity of their childhood dissolves. The heady excitement of first love will consume them both, but the pain of unintentional betrayal will test their friendship.