With the Foot scouring the sewers, the Turtles move in with April. When the water heater breaks down, Donatello goes down to the basement to fix it. Here Don meets April’s tenant, Kirby, an artist whose mysterious power opens an adventure to another dimension.

.TMNT 2003 E01-S16 The King (1/3)

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Popularity: 9%

The source of the mysterious crystals found in the lair appears to be an ancient subterranean city. This site is also the location where Donatello and the Turtles’ monster allies disappear. The city is inhabited by the sole survivor of an ancient race; although he claims wanting to return the creatures to their original form, his true intentions remain unknown.

.TMNT 2003 S01-E15 “Notes From The Underground, Part Three” (1/2)

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.TMNT 2003 S01-E15 “Notes From The Underground, Part Three” (1/2)

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Popularity: 9%

Inside the Foot Genetics Lab, the Turtles learn of past experiments that turned human subjects into monsters. The brothers soon encounter a group of these creatures who are at first hostile, but eventually become allies. The Turtles now find themselves helping these creatures evade the attacks of similar, but mindless monsters. This new partnership takes the Turtles deeper into the seemingly haunted catacombs, where creatures, and now Donatello, have disappeared.

.TMNT 2003 S01-E14 “Notes From The Underground, Part Two” (1/2)

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Popularity: 9%

While Donatello examines a pair of mysterious crystals, the lair’s perimeter alarm is triggered after the crystals begin to glow. The Turtles investigate and find tracks indicating the presence of some unknown creature. These tracks lead them deep underground where they uncover an abandoned Foot Genetics Lab.

.TMNT 2003 S01-E13 “Notes From The Underground, Part One” (1/2)

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Popularity: 9%

Oroku Saki reveals himself as the Shredder and exclaims, “Those who are not with me are against me, and I crush anyone who stands against me!” The Turtles soon find themselves outmatched and make a hasty retreat. Concurrently, Master Splinter searches for his sons and prepares a counteroffensive.

.TMNT 2003 S01E11 “The Shredder Strikes, Part Two” (1/2)

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Popularity: 18%

Leonardo meets a mysterious man named Oroku Saki, who appears to be the leader of the Foot Clan; despite previous skirmishes with the Foot, Leo is offered a truce and a chance to fight against a “greater evil.” Almost taken in by the offer, Leo’s brothers encourage him to consult Master Splinter. They soon learn the true nature of the Foot and the significance of their emblem.

.TMNT S01E10 “The Shredder Strikes, Part One” (1/2)

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Popularity: 10%

When homeless people start to disappear mysteriously, the Turtles set out to investigate. Their search leads them to a garbage-filled island where the homeless are being used as slaves by the villainous Garbageman.

.TMNT 2003 S01-E09 - Garbageman (1/3)

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Popularity: 10%

Teenage Mutant Ninja Turtles 2003 Season 01-Episode 08 Fallen Angel

Angel, a girl Casey knows from the neighborhood, is going through her initiation to join the Purple Dragons. Casey fears her going down the wrong path and tries to stop her from joining the gang with the help of the Turtles.

.TMNT 2003 S01-E08 Fallen Angel (1/3)

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Popularity: 13%

Casey Jones becomes an unwanted houseguest in the Turtles’ lair, so Raphael takes him topside to get some much needed air. During a routine skirmish with a street gang known as the Purple Dragons, Raph and Casey encounter the Foot Tech Ninja, whose cyber armor enhances their strength and speed while giving them invisibility. Raphael is kidnapped and then interrogated by Hun, while Casey escapes to get help.

.TMNT 2003 S01-E07-The Way of Invisibility (1/3)

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Popularity: 10%

Teenage Mutant Ninja Turtles Season 2003 01 Episode 06

After a blackout knocks out the lights in the lair, the Turtles go topside to investigate. Once above ground, the Turtles encounter the mysterious Foot Clan gathering artifacts from around the city.

.TMNT 2003 S01-E06 - Darkness on the Edge of Town (1/3)

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Popularity: 11%