 Ron joins Kim s family (minus Mrs. Dr. Possible) on a trip to Montana and Kim s Uncle Slim s ranch. There, Kim discovers her little cousin Joss has heavy-duty hero worship for Kim. Also, Dr. Possible and his brother Slim run into one of Dr. P s college friends in town. He says he s at a Wild West Weekend with all the worlds top scientists, not realizing that Dr. P was not one of the invitees. This makes Dr. Possible jealous and curious about the weekend. Meanwhile, Drakken is upset that he is not considered one of the top minds in the world, so he sets out to make sure he is. Instead of making himself smarter (which has failed before), he plans to make all the top scientists stupid. He invents a hat-device that makes the wearer act silly, invites most of the top scientists to a Wild West Weekend, and gives them all silly hats. Dr. Possible goes to see his friend at the Weekend, and sees everyone running around acting silly. Before he can go get help, Drakken captures him. The rest of the Possibles come to his rescue when he doesn t return, and are themselves captured. But Slim Possible has a robotic horse that breaks them out of their cell, and the Possibles defeat Drakken and knock the silly hats off of the scientists.