Underdog - Season 3 - Eps 10: Just In Case, Part 2
As Riff Raff and his newly acquired gang is being pursued by the prison guards, Shoeshine Boy is finally able to change into Underdog and fly to the prison. At the shore of the river, Riff reveals to his gang that he has all the components of the Ghost Ship of Captain Kidd. They begin to start rebuilding the ship. When asked why the disguised little guy isn't helping, Riff responds, 'Just in Case'. Just as Underdog arrives at the bank of the river, Riff and the gang set sail, but Underdog cannot see them in the Ghost Ship. After escaping, Riff goes on a crime spree robbing all ships on the sea. Underdog cannot find them since they are invisible. To assist Underdog, Polly hides in a crate on board a merchant ship so that when Riff robs the ship, she can call for Underdog.
About Underdog

Title: Underdog
First Air Date: 1964-10-03
Last Air Date: 2000-02-01
Status: Ended
Rating: 6.2/10 (from 22 votes)
Language: EN
Seasons: 4
Total Episodes: 125
Network: NBC
Genres: Animation, Comedy
Production Companies: Total Television Productions, Leonardo Productions
Synopsis
Underdog is an American animated television series that debuted October 3, 1964, on the NBC network under the primary sponsorship of General Mills, and continued in syndication until 1973, for a run of 124 episodes. Underdog, Shoeshine Boy's heroic alter-ego, appeared whenever love interest Sweet Polly Purebred was being victimized by such villains as Simon Bar Sinister or Riff Raff. Underdog nearly always speaks in rhyme, as in, "There's no need to fear, Underdog is here!" His voice was supplied by Wally Cox.
Cast

Wally Cox

Sandy Becker

Kenny Delmar

George S. Irving

Mort Marshall

Norma MacMillan

Delo States

Ben Stone

Allen Swift