Worlds collide when the precocious cartoon tots of Rugrats find themselves marooned in the Pacific with the adventuresome cartoon clan The Wild Thornberrys in this feature-length cartoon. The collected parents and kids of Rugrats head out for an ocean cruise that turns out to be considerably less posh than some had expected and becomes even more so when their boat sinks, leaving them on a deserted island. But it turns out to be not quite deserted, for the Thornberry family is searching for a rare cloud leopard a leopard that would be pleased to have a Rugrat-sized morsel for lunch.