Teenage Mutant Ninja Turtles
Season 4, Episode 20: Were-Rats from Channel 6
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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.
All Episodes - Season 4
Episode 1
Plan Six From Outer Space
Episode 2
Turtles of the Jungle
Episode 3
Michaelangelo Toys Around
Episode 4
Peking Turtle
Episode 5
Shredder's Mom
Episode 6
Four Turtles and a Baby
Episode 7
Turtlemaniac
Episode 8
Rondo in New York
Episode 9
Planet of the Turtles
Episode 10
Name That Toon
Episode 11
Menace, Maestro Please
Episode 12
Superhero for a Day
Episode 13
Back to the Egg
Episode 14
Son of Return of the Fly II
Episode 15
Raphael Knocks 'em Dead
Episode 16
Bebop and Rocksteady Conquer the Universe
Episode 17
Raphael Meets His Match
Episode 18
Slash the Evil Turtle from Dimension X
Episode 19
Leonardo Lightens Up
Episode 20
Were-Rats from Channel 6
Episode 21
Funny, They Shrunk Michaelangelo
Episode 22
The Big Zipp Attack
Episode 23
Donatello Makes Time
Episode 24
Farewell, Lotus Blossum
Episode 25
Rebel Without a Fin
Episode 26
Rhino-Man
Episode 27
Michaelangelo Meets Bugman
Episode 28
Poor Little Rich Turtle
Episode 29
What's Michaelangelo Good For?
Episode 30
The Dimension X Story
Episode 31
Donatello's Degree
Episode 32
The Big Cufflink Caper
Episode 33
Leonardo VS Tempestra
Episode 34
Splinter Vanishes
Episode 35
Raphael Drives 'Em Wild
Episode 36
Beyond the Donatello Nebula
Episode 37
Big Bug Blunder
Episode 38
The Foot Soldiers Are Revolting
Episode 39
Unidentified Flying Leonardo