Barnaby and Jones attend an exasperating team-building exercise, run by a young and overly ambitious acting chief superintendent. They're released from their misery after an explosion at a trucking company operated by one of the most hated men in Midsomer. The detectives soon realize that the intended victim had many enemies among the townswomen, including his own grandmother.

Based on the characters created by Caroline Graham. Originally broadcast on television as individual motion pictures in 2008.