Zack and Cody meet the members of "Iron Weasel" while on the boat. Later when they get ready to perform Mr. Tipton, they meet Mr. Moseby along the way. The band is vacationing under different names to stay undercover, but when Zack and Cody discover the people the band are disguising as are wanted by the police they are on serious trouble so it's up to Zack and Cody to let the band get on their sea legs before.
Tripp Campbell and the band jump ship. However, after their performance, they find out the people they were disguised as stole all the valuables in all the cabins. Mr. Moseby tells Mr. Tipton he didn't do it, and blames Iron Weasel, forcing Tripp, Ash, Derek, and Burger to jump ship, and Mr. Moseby noticed they didn't know the boat was docked.