Ep 12. The Cheese Car Chomp Mystery/Where's the Hero?

When the mouse family discover someone, or something, has taken a big bite out of their cheese car, Huckle promises to figure out who is putting the bite on the mouse family./The kids witness someone rescuing Granny Goat from the train tracks. After the train passes, the hero is gone. Granny Goat didn't even get a chance to thank him.