It's June 1945 and Detective Chief Superintendent Foyle is still on duty as they are unable to find a replacement for him. He's approached by Brigadier Timothy Wilson, his former commanding officer from his own military service in World War I, who is looking for a Russian POW, Ivan Spiakov, who has escaped and is believed to have been seen in the Hastings area.

Foyle finds himself going head to head with the US army as racial prejudice erupts. Mandy Dean is one of the residents staying at a guest house being run by Sam and Adam. She finds herself all alone disowned by her family as she has had a mixed-race baby. He ex boyfriend is hoping to get back together with her and after she is cuddled the finger of suspicion points towards him.

DCS Foyle is replaced and is free at last - he's resigned his position and planning to travel to the United States for an extended tour. Before departing however, he's asked to look into the case of James Devereaux, a young man who joined the Nazi British Free Corps during the war.