The Winds of War (1983)

S7E7 The Mole

Harry finds himself locked up, facing accusations from MI5 that he is the Russian mole. Meanwhile, Lucas heads to Moscow to collect intel and uncover the truth behind Harry's arrest, as the rest of the team works tirelessly on the Grid to clear his name. However, with a mountain of evidence stacked against Harry and a saboteur lurking within their ranks, the situation appears increasingly dire for him.