Still on the run, Bet and Katie find a place to hide, while Bet seeks help from her old friend, James Harwood. Harwood, meanwhile, faces a moral dilemma presented to him in the form of Colonel Salt’s latest deadly program, Stormcloud. Back in London, Alfred’s plans for an imminent departure to America are put on hold when someone close to him is put in danger. Lastly, Thomas is ordered by the CIA to spearhead an operation he’s not entirely on board with – one that will bring him to cross purposes with Martha, and leave him indebted to old foe Aleister Crowley (guest star JONJO O’NEILL).