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.

Harry Fletcher - Fletch to his friends - has spent his life surviving the tough streets of the East End. He knows working for notorious gangster Billy King is dangerous, and sleeping with Billy’s beautiful wife, Susan, is deadly...but rules are meant to be broken. If Billy discovers the affair, Fletch is a dead man. But the closer he gets to Susan, the more reckless Fletch becomes. And soon, Fletch realises that every one - even him - must pay the price for his actions.

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.

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.

When 19-year-old Tommy Carter throws away a promising career as a professional boxer to work for local villain Davey Abbott, everyone thinks he’s made a huge mistake - collecting debts and working in strip clubs is no life for a young lad. A brutal fighter, Tommy quickly earns a reputation for himself and becomes Davey’s trusted right-hand man. But when Davey is murdered Tommy is shocked to learn that Davey has left his business empire to him - Tommy’s the boss now. No one believes Tommy will succeed. But there is only one rule Tommy lives by...always back the underdog.

Liv Anderson can take care of herself, and she knows how to make money in a man's world. The daughter of a convicted murderer, she's made her way in one of the roughest parts of London by entrapping men and extorting them for money. But Liv is playing a dangerous game and soon finds herself in trouble with the city's most notorious gangster.

Living in a beautiful home on the edge of a council estate, Kara Bannon can’t imagine what it’s like to have nothing. An eerie phone call plays on her mind and within three days she loses everything – her job, her home and Justin, the only person she thought she could trust. Alone and terrified, she makes a decision that will change her life forever.

Having spent her life watching her father run his East London firm, Zara Ezra has learnt a thing or two about being a gangster, and she’s ready to take over when the time comes. Mike Regan, a blast from Zara’s past, is the head of his own firm, but when his son is kidnapped in the middle of a gangland feud, Mike has no choice but to accept help from the Ezras to get his little boy back alive. With a rival firm playing increasingly dirty, murder moves to the top of the agenda and Zara has some big choices to make.

1964 - London. Dolly Vincent is born to an East End gangster but is sent away for her own protection. Mad Mick is hell-bent on his revenge and will stop at nothing to kill her. Estranged from her family, she becomes a successful barrister, but after defending a young Italian man she finds herself caught up in a secret held by a high court judge. Tortured and left for dead, she flees London and heads to New York. Only the Vincents know where she is...but even they don't know the truth. 

Whitechapel in the 1930s was not an easy place to be brought up, and when the war came, those with nothing were hit the hardest. Queenie watched her family struggle and learned her lessons the hard way. When she was a little girl, there was one thing Queenie knew - she was going to get out of this.... And then tall, dark and handsome Alfie Butler walks into her life and gives Queenie her ticket out. One rushed wedding later, the real trouble begins. As the Krays make their mark on the East End, Queenie realises what it takes for an East End girl to really succeed.