It’s Emil’s first train ride alone and he’s excited―and a little nervous. On the train, his fellow passengers are impressed with how polite and grown-up Emil is, and the man in the bowler hat offers him some chocolate―but Emil keeps checking his coat pocket, where he’s pinned the money that he is taking to his grandmother. Soon, though, Emil finds himself getting sleepy . . . and the next thing he knows, the man in the bowler hat is gone― and so is the money! With the help of some new friends Emil becomes a detective and tracks the thief through the city.