Asteroid Blues

S2, E28: An asteroid is headed right for the kingdom, so Dr. Fox leads the gang on a mission to save the kingdom by flying a rocket to the asteroid's surface and blowing it to bits with a huge bomb. But when they get there, the gang finds the lonely asteroid is actually a super nice guy and don't want to blow him up. Unfortunately, the asteroid finds out about Fox's plan and runs away crying-- with the bomb still inside of him! A remorseful Dr. Fox rushes the gang after the asteroid to cheer it up before it's too late.