Elliot's loyalty is tested by an increasingly suspicious Ed Dumani. Sean throws a dinner in an attempt to unite the two families. Alexander is asked to meet with some of Finn’s old contacts.

With the Wallaces retreating to a safehouse, Marian puts the pressure on Sean to uncover Finn’s killer – and Sean wrestles with who he has become. How far is he prepared to go in pursuit of the truth? Meanwhile, Elliot’s recuperation is interrupted by a new danger.

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.

Billy Wallace returns to London to seek revenge. Meanwhile, someone is picking off more of Koba's associates.