Twelve-year-old Spirou will switch to a hotel bellhop school after the holidays. Almost everyone in the family has worked as a bellboy, including Spirou's grandfather. But Spirou prefers to stay with his friends in the old school. Especially as he is madly in love with his classmate Suzette. But since his future seems to be predestined, he at least wants to have one big adventure before his career as a "liftboy". Together with his friends, he is planning a trip in a moped with sidecar - from the South Sea beach to the Orient Express.