Bel is shaken by news of a source's murder and tries to put a stop to the team's pursuit of organised criminal Cilenti. However, the story is more tempting than ever when Freddie and Hector discover the depths that the corruption has reached, leading to chaos at the club. Is Bel right? Is Freddie charging towards a loaded gun?

• Abi Morgan

• Hannah John-Kamen
• Joe Cole
• Burn Gorman