In the Marquesas Islands in Polynesia, Jody is delighted to spot a large, mixed group of spotted and spinner dolphins—especially one she names Twister. There, she meets Lew and Monique, who work for a local dolphin-friendly tuna boat. Jody witnesses them in action as they save dolphins. But when something goes wrong with Monique's breathing equipment at the last minute on a dive, will someone be able to save Twister from the boat's nets?