Former boxer Finn Maguire - Crusher to his friends - has one task to perform: to deliver an invitation to a meeting. But when that meeting is between The Turk and the Guvnor - two criminal overlords fighting for control of London's underworld - his task is anything but simple. As the city swelters in a heatwave and the country is rocked by a series of terrorist atrocities Finn is dragged into a bloody gang war marked by double-crosses, intrigue, corruption and treachery. Fighting to save himself and the girl he loves from being shredded between the opposing factions, Finn is forced to make...

As the owner/manager of a gym, life for Finn Maguire is mercifully quieter after the murderous events of Crusher. But when his business partner Delroy is targeted by vicious loan sharks, and Finn's trusted lawyer Nicky apparently absconds with all of his money, he is dragged back into the murky criminality of the London underworld. Dark secrets run deep here - and there's danger at every turn. Someone wants Finn to lay low and stop asking questions - and will stop at nothing to silence him...