Danny and his friends have traveled to the circus and boarded the circus train, Casey Jr. While onboard the realize that one of the female elephants was expecting met Dumbo, a yong elephant with floppy, large ears. While the other female elephants ridiculed him, Danny and the gang didn't laugh at him because they though that they look good on him. Later, when his mother, Mrs. Jumbo was imprisoned, they met Timothy Q. Mouse and they realized that he could use his large, floppy ears to take flight and he became the star of the circus and his mother was let out and they share a private coach at the rear of the train. After that, Timothy Q. Mouse and the Crows decided to join Danny's Adventure team.