Best friends Tod, a fox kit, and Copper, a hound puppy, visit a country fair when they see a band of dogs called "The Singin' Strays". The band has five members: Dixie, Cash, Granny Rose, and twin brothers Waylon and Floyd. It is important that they perform well because a talent scout is visiting.

Set several years after the first film, Ariel and Prince Eric are happily married with a daughter, Melody. In order to protect Melody from the Sea Witch, Morgana, they have not told her about her mermaid heritage. Melody is curious and ventures into the sea, where she meets new friends. But will she become a pawn in Morgana's quest to take control of the ocean from King Triton?