In Lotsa Luck, Donald falls overboard during a South Sea cruise while holding the lucky buck the supposed source of Cousin Gladstone s famed luck Next, in The Letter Mouse Trap, Goofy mysteriously disappears, leaving only a letter and a wooden crate behind The resulting trail of trouble leads Mickey all around the world and into the clutches of a robot army FiIn Lotsa Luck, Donald falls overboard during a South Sea cruise while holding the lucky buck the supposed source of Cousin Gladstone s famed luck Next, in The Letter Mouse Trap, Goofy mysteriously disappears, leaving only a letter and a wooden crate behind The resulting trail of trouble leads Mickey all around the world and into the clutches of a robot army Finally, in Crash Course, Scrooge vies with John D Rockerduck to see whose factory builds the safest car The competition calls for driving two crazily souped up models through gut grindingly treacherous mountain passes