The Ipcress File Season 2 is yet to be announced by ITV1

Harry is tormented by what has been planted in his mind as his mission reaches its bloody climax and the stability of the free world is at stake.

Harry is handed over to the Chinese military where he is subjected to a bewildering regime of mental torture. Dalby's love for Dr Lavotchkin takes its toll on his judgement.

Dalby challenges General Cathcart, suspecting American involvement in Dawson's abduction. Harry and Jean head to the Pacific atoll where the neutron bomb is to be tested.

Harry and Jean arrive in Beirut in hot pursuit of Randall, who is holding Professor Dawson. Meanwhile, Dalby holds a secret rendezvous with Stok, a Russian colonel.

Under the diligent eyes of agent Jean, Palmer's intuition edges them closer to the professor while gun-for-hire former MI6 man Randall is always one step ahead. A tip-off from a key witness draws Jean and Palmer closer to the truth but their discovery only opens the door to a more chilling mystery.

During the Cold War, ex-smuggler Harry Palmer is enrolled as a reluctant but talented spy. Harry embarks on a dangerous undercover mission in Berlin.