AllMovie

After he is accidentally struck on the mouth by the Skipper (Alan Hale Jr.), Gilligan (Bob Denver) discovers that one of his loose tooth fillings has been transformed into a radio receiver (at one point, he evidently picks up the audio feed from the CBS television network--plug, plug!) This freak occurrence proves to be invaluable when the Castaways' radio dies just as a typhoon approaches the island. With vital weather reports continuously emanating from his bridgework, Gilligan becomes indispensable to his companions--until the filling goes on the fritz.