Croft and Greig investigate a cat burglar who claims he cannot walk. They team up with a private investigator who has also been pursuing the man in an attempt to obtain the evidence they need to prove he was responsible. Meanwhile, Quinnan fails to turn up for duty, and Jarvis and Hollis suspect he is hung over after a drunken party. However, Cryer is aware of the real reason behind Quinnan's absence.
