The taps are off for all gangs in London except Asif Afridi, so frustrated Kurdish gang leader Lale decides to hit a shipment of his cows that are being used to smuggle heroin. Elliot makes a connection with a key member of the Dumani family. Sean unleashes his fury after he makes a discovery about his father’s murder.

The truth about Finn’s murder is revealed - and The Wallaces and The Dumanis will never be the same again. Meanwhile, Luan is forced to confront the deadly consequences of his actions. Elliot provides Vicky with enough information to make her move.

With the stakes higher than ever, the Wallaces are forced to go into hiding. Luan risks his life to rid himself of Mosi. Floriana seizes an opportunity. Elliot attempts to save the life of a colleague.

Old scores are settled. New alliances are forged. Lives are lost. Elliot is forced to make a choice that will define his entire future. And Sean makes a discovery about a traitor who has been in his midst all along.