Double Trouble is the fourth episode of Butch Cassidy and the Sundance Kids.
The Kids are called upon to play at a coronation of a prince in a small Indian country. It is suspected that his enemies will try to kidnap him, and the Kids' mission is to find out who and stop him. They discover that the prince is going to be replaced with an impostor who will assume the throne in his place. It's up to Butch and his friends to rescue the real Prince Taki before it's too late.