Season 3
Episodes
1 Underdog: Just In Case 1&2 / Klondike Kat: Honor At Steak / Tooter The Turtle: Mish Mash Mush Oct 3, 1966 
2 Underdog: Just In Case 3&4 / Klondike Kat: Secret Weapon / Tooter The Turtle: Drafthead Oct 10, 1966 
3 Underdog: The Marble Heads 1&2 / Klondike Kat: The Big Fromage / Tooter The Turtle: Quarterback Hack Oct 17, 1966 
4 Underdog: The Marble Heads 3&4 / Klondike Kat: Hard To Guard / Tooter The Turtle: Duck Hunter Oct 24, 1966 
5 Underdog: Simon Says Be My Valentine 1&2 / Klondike Kat: The Candy Mine / The Hunter: Duck Hula Hoop Havoc Oct 31, 1966 
6 Underdog: Simon Says Be My Valentine 3&4 / Klondike Kat: Rotten To The Core / Tooter The Turtle: Taxi Turtle Nov 7, 1966 
7 Underdog: Round and Round 1&2 / Klondike Kat: Trap Baiting / Tooter The Turtle: Kink Of Swat Nov 14, 1966 
8 Underdog: Round and Round 3&4 / Klondike Kat: Gravy Train / The Hunter: Frankfurter Fix Nov 21, 1966 
9 Underdog: A New Villain 1&2 / Klondike Kat: Cream Puff Buff / Tooter The Turtle: Tuesday Turtle Nov 28, 1966 
10 Underdog: A New Villain 3&4 / Klondike Kat: Plane Food / Tooter The Turtle: Buffaloed Bill Dec 5, 1966 
11 Underdog: Batty Man 1&2 / Klondike Kat: Banana Skinned / Tooter The Turtle: Snafu Safari Dec 12, 1966 
12 Underdog: Batty Man 3&4 / Klondike Kat: Up a Tree / Tooter The Turtle: The Master Builder Dec 19, 1966 
13 Underdog: The Vacuum Gun 1&2 / Klondike Kat: Pie Fly / Tooter The Turtle: Anti-Arctic Dec 26, 1966 
14 Underdog: The Vacuum Gun 3&4 / Klondike Kat: Jail Break / Tooter The Turtle: Muddled Mountie Jan 2, 1967