Jody is totally excited. Not only has she had the time of her life over the past few months - spotting some fabulous dolphins and travelling the world - she's now all set for the holiday of a lifetime. She and her dolphin-mad friend, Lauren, have been invited on a cruise around the Canary Islands by a millionaire friend of Lauren's dad - it's going to be amazing. She and Lauren will get to catch up, and lie around in the sunshine on board a luxury yacht, as well as finding some more fab dolphins to spot and visit a sea wildlife centre. And this could be the setting for their first-ever sighting of the infamous pilot whale, which lives in the waters off the Canaries! But Jody's excitement at seeing these amazing creatures is offset by a disturbing accident. Both the whales and the dolphins are at risk from the ferries that link the islands - what can Jody do to help safeguard them?