A German American called Victor Kellerman arrives in the village with the intention of killing a local landowner, a Mr Lessor. He attacks Lessor but he cannot go through with it and leaves the area. Kellerman is later arrested and Nick is assigned to escort him back into the area. It is revealed that Lessor was a SS traitor and responsible for sending Kellerman and his family to Nazi concentration camps during WW2. Meanwhile Kate is treating Lessor for diabetes, and when he realises he will have to go to court he takes an over dose of insulin. Without him the evidence is incomplete and the charges are dropped. Tragedy strikes when Dr Alex Ferrenby drowns whilst fishing, he died of a brain hemorrhage. And Greengrass helps some gypsies organise some bare-fist fighting.
