"Mack" and wife "Pam" live contentedly on their pond and are preparing for winter when some migrating ducks break their journey and infect their kids "Gwen" and "Dax" with the travelling bug. "Mack" is adamant that staying home is the best strategy, but the arrival of "Uncle Dan" and his daughter's persistence soon persuade him that a trip to Jamaica wouldn't be a bad idea. Off they go and en route encounter the dangers of the big city. That's where they meet the scrawniest but meanest of pigeons "Chump" who, after a bit of tussle over a sandwich, agrees to introduce them to the only bird that...