When Greek Street is attacked by new pimps in town, Charlotte Wells fights back with disastrous consequences; she must protect her girls from the men who want to take over her business; Lucy goes into business with two recent arrivals to the scene.

With Charlotte's brothel damaged by fire and all of her savings up in smoke, she is determined to retaliate - but the Wells women need to be clever; the Pinchers are unhappy men; Lucy offers to help her sister in a way that benefits her business.

People are gearing up for an illicit boxing party at Lady Fitz's house; with Lydia out of Bedlam, Blayne back in England and the Pinchers determined to seal a lucrative deal, there's tension in the air; an old friend's arrival stokes rivalries.

The disastrous events of the night before leave the whole town reeling. As more details are uncovered, suspicion starts to spread through Soho. Who's to blame for this tragedy?

As Margaret turns her mind to revenge, her family wonder just how far she'll go to get justice for those she loves. But with the clock ticking, can North and Lucy protect her from the law?

After the unhappy events of the previous day, can Margaret ensure her family's safety and also protect Jonas' interests? And as threats escalate, can Lucy and Elizabeth keep Golden Square within their grasp?

When Elizabeth's past finally catches up with her, will Lucy end up paying the price? Meanwhile, as Hal's anger with the Well's family grows, can Emily broker peace before the Wells-Pincher feud spirals out of control?

As Blayne tightens his grip on power, Lydia is faced with a terrible choice. And with the Wells-Pincher feud coming to a head and Nancy firmly in Hal's sights, just how far is he willing to go for revenge?