A retired pet of buccaneers, Mac the Macaw enjoys a sedate life on the mortgaged estate of Benjamin Girdis (Jason Robards). When creditors threaten to foreclose on Benjamin's property, Mac stuns Benjamin's grandson Sam (Jamie Croft) with his ability to talk, then enlists him in a wild scheme to recover buried treasure from the Coral Islands. To finance their excursion, Sam sells an antique ring to an unscrupulous professor-cum-collector named Dr. Hagen (John Waters) who decides that he, too, is interested in acquiring the treasure. Trailing Sam to a resort hotel, Hagen bides his time while Sam, using Mac as his dummy, accepts a ventriloquist gig. While Mac tries to r...