Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Sabotage Agent (American title: The Adventures of Tartu) is a 1943 World War II spy film starring Robert Donat.British Captain Terence Stevenson (Robert Donat) accepts an assignment even more dangerous than his usual job - defusing unexploded bombs. Fluent in Romanian and German and having studied chemical engineering, he is parachuted into Romania to assume the identity of Captain Jan Tartu, a member of the fascist Iron Guard. He makes his way to Czechoslovakia to steal the formula of a new Nazi poison gas and sabotage the factory where it is being manufactured.