When Diego learns that a baby humpback whale is in trouble, he takes off right away to save it. Along his way, he faces exciting new challenges. Some of those challenges include finding the right path to get to the whale, finding an animal to help him get around some jellyfish, and having to out swim sharks! The trouble doesn't stop there though, as Diego has to also figure out a way to get the baby humpback whale off of the beach and back into the ocean.