Joss's gambling debts peak; in an attempt to pay them off, he takes a second job as a cab driver. He is presented with a once only opportunity for easy money when a high roller offers him a job as a getaway driver. Amy and Jonesy investigate the murder of a client of Joss's and link it to an armed robbery and Joss's high roller client. Following this, Joss is taken hostage and it becomes a race against time to save him. Kelly's relationship is again tested when she and her boyfriend are again on opposing sides of a case.