The gang moves to a secret location in the countryside and starts training to be soldiers. But the strain of being on the run begins to take its toll on Jas and Marcus' relationship. At the country house, the gang meets Eliette, a French Canadian radical who inspires Jas. In London, meanwhile, Pence and Cullen are getting desperate: the gang are becoming notorious and there's a rival force trying to steal the case. Pence turns to Kenya for help.

Kent begins to enjoy his role and forms a surprising alliance. Cullen and Fallon bond over a shared history Meanwhile, as Eliette and Jas speculate about the future, Dhari and Marcus put their personal issues aside - and the infighting that threatened to destroy the gang falls away as they come together to embark on a brutal mission. In a desperate attempt to save his relationship with Jas, Marcus decides to do something they will never come back from.