Ultimatum

After a bomb goes off in a central London cafe, a call comes in from an unknown terror group with a warning that a far greater attack will be launched in 12 hours' time. Meanwhile, William Garrett, AKA Fox, is awaiting trial for mass murder, claims he knows the bomber's name. But his information comes at a price. So now it is a race against time for DI Mike Bolt and DC Tina Boyd as they chase their targets across the city in a desperate attempt to stop a major atrocity - before it's too late ...