Teenage Mutant Ninja Turtles: Season 4 Episode 20
Were-Rats from Channel 6
After many failed attempts from his rodent subjects to find food, the Rat King learns of an abandoned canister of mutagen lost in the sewers and claims it for himself.
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Opensubtitles
4 - 1Plan Six From Outer Space Sep. 10, 1990
4 - 2Turtles of the Jungle Sep. 11, 1990
4 - 3Michelangelo Toys Around Sep. 12, 1990
4 - 4Peking Turtle Sep. 13, 1990
4 - 5Shredder's Mom Sep. 14, 1990
4 - 6Four Turtles And A Baby Sep. 17, 1990
4 - 7Turtlemaniac Sep. 18, 1990
4 - 8Rondo in New York Sep. 19, 1990
4 - 9Planet of the Turtles Sep. 20, 1990
4 - 10Name That Toon Sep. 21, 1990
4 - 11Menace, Maestro Please Sep. 28, 1990
4 - 12Superhero For A Day Sep. 25, 1990
4 - 13Back to the Egg Sep. 26, 1990
4 - 14Son of Return of the Fly II Sep. 15, 1990
4 - 15Raphael Knocks 'em Dead Sep. 15, 1990
4 - 16Bebop and Rocksteady Conquer the Universe Sep. 22, 1990
4 - 17Raphael Meets his Match Sep. 22, 1990
4 - 18Slash the Evil Turtle from Dimension X Sep. 29, 1990
4 - 19Leonardo Lightens Up Sep. 29, 1990
4 - 20Were-Rats from Channel 6 Oct. 13, 1990
4 - 21Funny, They shrunk Michelangelo Oct. 13, 1990
4 - 22The Big Zipp Attack Oct. 20, 1990
4 - 23Donatello Makes Time Oct. 20, 1990
4 - 24Farewell, Lotus Blossum Oct. 27, 1990
4 - 25Rebel without a Fin Oct. 27, 1990
4 - 26Rhino-Man Nov. 03, 1990
4 - 27Michelangelo Meets Bugman Nov. 03, 1990
4 - 28Poor Little Rich Turtle Nov. 10, 1990
4 - 29What's Michelangelo Good For? Nov. 10, 1990
4 - 30The Dimension X Story Sep. 08, 1990
4 - 31Donatello's Degree Sep. 08, 1990
4 - 32The Big Cufflink Caper Sep. 14, 1990
4 - 33Leonardo VS Tempestra Nov. 17, 1990
4 - 34Splinter Vanishes Nov. 24, 1990
4 - 35Raphael drives 'em Wild Nov. 24, 1990
4 - 36Beyond the Donatello Nebula Dec. 01, 1990
4 - 37Big Bug Blunder Dec. 01, 1990
4 - 38The Foot Soldiers are Revolting Dec. 08, 1990
4 - 39Unidentified Flying Leonardo Dec. 08, 1990
4 - 40Episode 40 Mar. 28, 1991- 4 - 41Episode 41 Mar. 29, 1991
