During World War I, Army Private Arthur James Hamp is accused of desertion during battle. The officer assigned to defend him at his court-martial, Captain Hargreaves, finds out there is more to the case than meets the eye.

A British scientist is discovered to have been passing information to the Communists, then kills himself. Another scientist decides that they might have brainwashed him by a sensory deprivation technique, but he doesn’t know if someone really can be convinced to act against their strongest feelings. So he agrees to be the subject in an experiment in which others will try to make him stop loving his wife.

Thieves disguised as soldiers plan to use a bomb scare as part of their plan to rob a bank.