When their attempt to rob a casino owned by the feared gangster Pope (Robert de Niro) goes awry and a shootout ensues, Vaughn (Jeffrey Dean Morgan) and Cox (Dave Bautista) are forced to flee on foot and hijack city Bus 657 and take the passengers hostage. Now, in a high speed chase, Vaughn will not only have to outwit the police, led by Officer Bajos (Gina Carano) who are in hot pursuit, but he will have to contend with Pope's maniacal right hand man, Dog (Morris Chestnut), in order to make it through the day alive. But we quickly learn that things are not what they seem, and Vaughn has more than one card up his sleeve.

When charismatic terrorist Adam Qasim escapes from MI5 custody during a routine handover, the legendary Harry Pearce, Head of Counter-terrorism, is blamed. Disgraced and forced to resign, no-one is surprised when Harry disappears one night off a bridge into the Thames... With MI5 on it's knees in the wake of the Qasim debacle and facing controversial reform, former agent Will Crombie is brought back to uncover the truth they feared - Harry's still alive. He's gone rogue, and needs Will's help. As Qasim prepares his devastating attack on the heart of MI5 in London, Will must decide whether to turn Harry in - or risk everything by trusting the damaged, dangerous master spy who has already betrayed him once before