On a dark and stormy night on Donkey Kong Island, DK's young nephew Diddy Kong is entrusted with a weighty task as part of his "hero training": guarding the precious banana hoard until midnight, when DK — worn out and ready for bed — will relieve him. All goes smoothly until Diddy hears noises outside. It is King K. Rool's Kremling minions, sent to steal the bananas. Diddy easily cartwheels through the first two Kritters, but when the hulking Krusha arrives as backup, the little Kong is overpowered, sealed inside a barrel, and tossed into the bushes. The next morning, DK's grandfather Cranky Kong bursts into the treehouse to wake him with the bad news and send him to check his Banana Cave. Finding it emptied, an enraged Donkey Kong vows that the Kremlings will pay for stealing his hoard and kidnapping his little buddy — and sets off to scour every corner of the island to get both back.