Season 1: Episode 14

Season 1: Episode 16

Teenage Mutant Ninja Turtles (2003)

Season 1: Episode 15

Notes from the Underground (3)

TMDb

Air Date:

2025-12-06

Genre

Action & Adventure Animation Kids

Release Date

2003

End Date

2009

Episode Description

After befriending the once-human creatures in an abandoned underground Foot Genetics Lab, the Turtles join them on a journey deeper into the earth, where they come upon the ruins of a once-great subterranean city.

1,568Weekly views

1,568Monthly views

44Total views

3

1

Cast

Michael Sinterniklaas

A Better Mousetrap

Attack of the Mousers

Meet Casey Jones

Darkness on the Edge of Town

The Way of Invisibility

The Shredder Strikes (1)

The Shredder Strikes (2)

The Unconvincing Turtle Titan

Notes from the Underground (1)

Notes from the Underground (2)

Notes from the Underground (3)

The Shredder Strikes Back (1)

The Shredder Strikes Back (2)

The Monster Hunter

Return to New York (1)

Return to New York (2)

Return to New York (3)

Lone Raph and Cub

Search for Splinter (1)

Turtles in Space (1): The Fugitoid

Turtles in Space (2): The Trouble with Triceratons

Turtles in Space (3): The Big House

Turtles in Space (4): The Arena

Turtles in Space (5): Triceraton Wars

Secret Origins (1)

Secret Origins (2)

Secret Origins (3)

The Ultimate Ninja

The Return of Nano

Return to the Underground

City at War (2)

City at War (3)

The Golden Puck

Rogue in the House (1)

Rogue in the House (2)

April's Artifact

Return of the Justice Force

The Big Brawl (1)

The Big Brawl (2)

The Big Brawl (3)

The Big Brawl (4)

Space Invaders (1)

Space Invaders (2)

Space Invaders (3)

Worlds Collide (1)

Worlds Collide (2)

Worlds Collide (3)

The Christmas Aliens

Mission of Gravity

Across The Universe

Same as It Never Was

The Real World (1)

The Real World (2)

Bishop's Gambit

The Peoples' Choice

A Wing And A Prayer

Sons of the Silent Age

All Hallows Theives

Aliens Among Us

Samurai Tourist

The Ancient One

Scion Of The Shredder

The Trouble With Augie

A Tale Of Master Yoshi

The Return Of Savanti (1)

The Return Of Savanti (2)

Adventures In Turtlesitting

The Ninja Tribunal

Lap of the Gods

Demons and Dragons

Legend of the 5 Dragons

More Worlds Than One

Beginning of the End

New World Order (1)

New World Order (2)

Fathers and Sons

Past and Present

Enter the Dragons (1)

Enter the Dragons (2)

Future Shellshock

Playtime's Over

Bishop to Knight

Night of Sh'okanabo!

Clash of the Turtle Titans

Fly Me to the Moon

Invasion of the Body Snatcher!

The Freaks Come Out at Night

Graduation Day: Class of 2105

Timing Is Everything

Enter the Jammerhead

The Fall of Darius Dunn

Turtle X-Tinction

DNA Is Thicker Than Water

The Cosmic Completist

The Day of Awakening

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