After the brutal gangland murder of her husband Terry, Tracey Tempest just wants to move on. She’ll never get over Terry’s betrayal, but she’s determined his shady past won’t spoil life for her and her beloved boys Ricky and Jamie. Max Hardcastle just wants a quiet life and to maybe see how things go between him and Tracey. He knows she’s been hurt in the past, but he’s nothing like Terry and he’ll do anything to keep Tracey happy and safe. But some people have other ideas.

Cathy Townsend has it all: a loving husband, two handsome sons and a lifestyle that many people envy. But one violent and bloody night, Cathy's whole world comes crashing down around her. Heartbroken and reeling from the events that took place, Cathy is determined to seek revenge on the people responsible for stealing her perfect life away from her. She knows she’ll need help but doesn’t know who to trust. Because in this new dark and dangerous world, Cathy discovers that friends are enemies and blood isn’t always thicker than water.

Georgie Deacon thinks nothing of it when a gang of girls led by Yasmin, a member of the notorious Marx family, knock at her door and threaten to hurt her daughter—that is until her daughter doesn't return home. Detective Clark Kims ignores Georgie's plea to have the gang of girls brought in for questioning. He insists it is the work of the Kent serial killer, until Georgie realizes that the detective's daughter is part of the gang.

An unassuming Dottie Ellis falls for bad boy Jimmy Carson, who sweeps her off her feet. But after discovering she is pregnant and learning that Jimmy has gone back to his ex-girlfriend Carrie Verne, her happiness falls apart. Heartbroken, Dottie runs home, only to unearth a disturbing family secret that rocks her to the core. She is now faced with an agonizing decision to protect her unborn child. What she does shocks the town. In a moment of solidarity, Carrie makes a promise to Dottie, cementing an unlikely bond between them.

Scarlet Drew isn’t to be messed with. As the daughter of a notorious London gangster, she’s got enough street smarts to take on the world. But when the most important person in Scarlet’s life is murdered in cold blood on the East End streets where she grew up, she can only think of one thing - revenge. Scarlet’s aunt, Lily, is fierce, straight-talking and a force to be reckoned with. As head of the family firm and queen of the London underworld, she welcomes her niece into the business and swears to help her get revenge - after all, family comes first.