Sequel to the Disney animated classic about a huge litter of dalmation puppies and their adventures in London town. When young Patch accidentally becomes separated from his siblings, he takes the opportunity to strike out on his own and meet his canine hero Thunderbolt, whose TV adventure show is currently shooting nearby. The young pup can't believe his luck when he gets the chance to serve as Thunderbolt's real-life sidekick in a series of adventures around the city; and when Cruella de Ville kidnaps all of Patch's brothers and sisters, the two new friends realise that it is up to them to save the day.

Ariel and Eric have had a baby daughter, Melody, but the threat of reprisal from Ursula's sister Morgana means that they must keep the girl in the dark about her mermaid heritage. However, to be a mermaid is what Melody wants most and her dreams of the sea soon find her playing into the evil Morgana's hands. To set things right, Ariel must team up with her old chums Sebastian, Flounder and Scuttle and embark upon a daring rescue mission.