In Moosehead Pond, somewhere in a New England forest, anxious Mack Mallard prevents his kids, Dax and Gwen, from venturing into the outside world, much to the chagrin of his wife, Pam.

One day, the Mallards meet a flock of migrating blue-winged teal ducks who are en route south to Jamaica, which the family finds interesting, but Mack forbids them to join. Pam tells Mack that he must open his eyes to the world outside him. That night, Mack talks with his aging Uncle Dan, who also does not want to leave the pond. However, Uncle Dan makes Mack re-evaluate his stance and he decides to let his family migrate, with Uncle Dan joining them at Gwen's behest.