Tommy Pickles and his baby chums are shipwrecked on the island where the Thornberrys are making their latest wildlife documentary.
We know that horror fans are salivating at the thought of Dracula, Frankenstein's Monster and the Wolf Man teaming up in Van Helsing. But do tiny tots, while storing up on sugary cereals in front of the TV, pray for the day that the Rugrats will cross paths with The Wild Thornberrys?
That's what happens here, as Tommy Pickles and his baby chums are shipwrecked on the island where the Thornberrys are making their latest wildlife documentary.
This latest Nickelodeon venture favours the Rugrats formula and doesn't have the width of The Wild Thornberrys movie, proving that there are indeed a finite number of bug-eating and diaper-filling jokes.
However, it's lively and anarchic, Bruce Willis cameos as the voice of Spike the dog, and a scratch 'n' sniff card gives an interactive whiff to on-screen items such as peanut butter and smelly feet.
Combining these two shows adds up to less than the sum of its parts. Things get a bit muddled and far too many forgettable songs are employed to fill the running time.