To help his master solve a crossword puzzle--”seven-letter word found chiefly in Russia”--Felix travels there by mule kick. A peasant mistakes Felix for a bomb; then revolutionaries mistake Felix for a spy. Felix escapes with the help of a goat, then by disguising himself as a cactus, only to find he’s taken the revolutionaries’ plans, and now sentries are on his trail. In the end Felix says his trip to Russia was nothing but “trouble” …that being the puzzle’s seven-letter word.