FBI special agent Mercy Kilpatrick has been waiting her whole life for disaster to strike. A prepper since childhood, Mercy grew up living off the land — and off the grid — in rural Eagle’s Nest, Oregon. Until a shocking tragedy tore her family apart and forced her to leave home. Now a predator known as the cave man is targeting the survivalists in her hometown, murdering them in their homes, stealing huge numbers of weapons, and creating federal suspicion of a possible domestic terrorism event.

Every day, Mary wakes up before dawn to make breakfast from scratch. She tends the garden and feeds the animals. Every night, Mary makes sure she has dinner on the table for when her husband Cal gets home from work. She puts on his favourite lipstick and greets him with a smile. 'I've missed you.' It's not true and he knows it. But he likes to hear it all the same. Their cabin is hidden deep in the woods in the Scottish Highlands, and Mary doesn't remember the last time she saw another living soul. She tries not to think about her life before too much.

After the devastating loss of her husband in Iraq, Morgan Dane returns to Scarlet Falls, seeking the comfort of her hometown. Now, surrounded by family, she’s finally found peace and a promising career opportunity - until her babysitter is killed and her neighbor asks her to defend his son, Nick, who stands accused of the murder.

Janie Klassyn was only 14 years old when she made the blood pact with her friends. She could never imagine she was setting in motion the horrifying crime that would tear her peaceful prairie town apart. Twenty years later in California, school counselor Emma Grant struggles to keep her past buried. But when she finds a note on her car threatening to reveal her secret, it becomes harder to keep up the deception. Even her teenage stepdaughter suspects that Emma is hiding something.

Everyone has secrets, and Rachel Holloway is no exception. She’s worked hard to keep the past where it belongs: dead and buried. And so far, she’s been very successful. But now the small newspaper where she works wants to produce a podcast on a cold case: the disappearance 12 years ago of young Molly Forster. Some secrets should never see the light of day, and, as far as Rachel is concerned, whatever happened to little Molly is one of them.