In this period spy drama, British Captain Terence Stevenson (Robert Donat) is parachuted into Romania and pretends to work for the enemy so he can steal the formula of a new Nazi poison gas and blow up the chemical plant where it is being manufactured.

This film, called Sabotage Agent in the UK, was the first MGM-British production in two years, with an American director but an all-British cast, and it featured a captured bomber with Luftwaffe markings. Donat’s riveting performance propels The Adventures of Tartu into the Internet Archive Top 100.