When the vacationing Rugrats and their parents get stranded on a deserted island, Tommy Pickles knows there's only one man who can help them: Nigel Thornberry! Except a bonk on the head has made Nigel suddenly seems more like a 3-year-old than a man. Luckily, the babies have Eliza on their side, and with her ability to communicate with animals, she can even talk to Spike! Will the Rugrats ever make it back to their own back yard? Will Nigel the toddler turn back into a documentary-making dad? Will Spike sound an awful lot like Bruce Willis?