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?
Teenager Riley's mind headquarters is undergoing a sudden demolition to make room for something entirely unexpected: new Emotions! Joy, Sadness, Anger, Fear and Disgust, who’ve long been running a successful operation by all accounts, aren’t sure how to feel when Anxiety shows up. And it looks like she’s not alone.
When 11-year-old Riley moves to a new city, her Emotions team up to help her through the transition. Joy, Fear, Anger, Disgust and Sadness work together, but when Joy and Sadness get lost, they must journey through unfamiliar places to get back home.
Manny the mammoth, Sid the loquacious sloth, and Diego the sabre-toothed tiger go on a comical quest to return a human baby back to his father, across a world on the brink of an ice age.