As Wyatt is tortured by Vartak's henchmen, Mac presses her corrupt lawyer to hand over an encrypted hard drive that might hold clues to the whereabouts of a pair of "nuclear suitcases".
Strike Back is based on the eponymous novel written by ex-British Special Forces soldier Chris Ryan.
Strike Back is a compelling story of betrayal, glory, redemption and revenge played out through the interlinking lives of two former soldiers: military hero Hugh Collinson and discharged veteran John Porter.
Strike Back - Series 7, Episode 4 Synopsis and Schedule