: Shredder, Krang, Bebop, and Rocksteady are introduced as the primary antagonists operating out of the Technodrome .
: The season concludes with the Turtles infiltrating the TCRI building , discovering their origin's link to the Utrom aliens, and Splinter mysteriously disappearing. 2012 Animated Series (Nickelodeon)
: Major arcs include the "Notes from the Underground" trilogy and "The Shredder Strikes Back".
This version was designed to be a more .
: Critics from Rotten Tomatoes note it as "hip, playful and witty," though it is famously more comedic and campy than the original Mirage comics. 2003 Animated Series (4Kids)
The first season of (TMNT) varies significantly depending on which era of the franchise you are interested in. Across its history, Season 1 serves as the foundational introduction to the four brothers—Leonardo, Raphael, Donatello, and Michelangelo—and their mentor, Splinter. 1987 Original Animated Series
: The season finale, "Showdown," features a massive battle against the Kraang and Shredder, revealing that Shredder's daughter, Karai, is actually Splinter's lost daughter . Recent Reboots
This season transitioned the franchise into with a heavy focus on character growth and humor.
