Russel, Gus and Loopy decide to go on vacation on Frolicking Island, only to find it is not a resort, but a horrible trap ruled over by Happy Fernando and his pain-inducing whistle. Russel works with Captain Darling (who is also trapped with Auntie First on the island) to try to escape. Meanwhile, Vernon creates an Unmeltable Ice Cube that turns all liquid it touches solid, but when he tries to dispose of the dangerous invention, Bob Wire steals it to set up a bogus sales campaign.