Mystery! Episodes on PBS

As this series of “Foyle's War” puzzlers concludes, Foyle (Michael Kitchen) is accused of sedition and suspended just as the investigation of a young man's death begins. The victim had been involved in a robbery when he was shot by a guard, and one of his accomplices works at a guest house populated by such an unlikable collection of guests that something nefarious must be going on there. Meanwhile, Foyle's son Andrew (Julian Ovenden) is home, recovering from an accident in his Spitfire, and Sam (Honeysuckle Weeks) offers him tea and sympathy. Milner: Anthony Howell. Collier: Nicholas Farrell.