Teenage Mutant Ninja Turtlesfirst season originally aired between February 8, 2003 and November 1, 2003, beginning with the "Things Change" episode. The episodes were first released in eight volumes, TMNT Volume one through Volume eight. The volumes were released From September 2, 2003 through March 16, 2004. The episodes were later released in 2 part season sets, part 1 was released on May 22, 2007 which had the first 12 episodes, and part 2 was released on September 18, 2007, this had the final 14 episodes of the season.


The season primarily focuses on the Turtles slowly coming into conflict with the Foot Clan. After their lair is destroyed by Baxter Stockman's mousers, they find a new home elsewhere in the sewers and also gain new allies in the form of April O'Neil and Casey Jones. The Turtles foil the plans of the Shredder, Hun, and Stockman on numerous occasions before Shredder offers Leonardo a peace offering in exchange for their service, citing an unknown evil they must face together. Splinter reveals the Shredder and Hun's hand in murdering his master Hamato Yoshi, and the two sides come to blows in a battle that seemingly ends in the Shredder's defeat. However, unknown to the Turtles, the Shredder survives, and after his ninjas savagely ambush and wound Leonardo, destroys April's home and believes them dead, though the Turtles, Splinter, Casey and April survive and depart for Casey's family's farm house in rural New York. After Leonardo's wounds heal and their resolve is restored, the group returns to New York to face the Foot Clan. However, after their triumph against the Shredder, Splinter vanishes, and after following a lead from a mysterious group known as the "Guardians", the Turtles discover the Utroms, an alien race hiding amongst humanity, and are unable to save Splinter from them before being teleported into space.


Main Characters




#Season CodeTitleOriginal Airdate
1 S01E01 "Things Change" February 8, 2003
2 S01E02 "A Better Mousetrap" February 15, 2003
3 S01E03 "Attack of the Mousers" February 22, 2003
4 S01E04 "Meet Casey Jones" March 1, 2003
5 S01E05 "Nano" March 8, 2003
6 S01E06 "Darkness on the Edge of Town" March 15, 2003
7 S01E07 "The Way of Invisibility" March 22, 2003
8 S01E08 "Fallen Angel" March 29, 2003
9 S01E09 "Garbageman" April 5, 2003
10 S01E10 "The Shredder Strikes, Part 1" April 12, 2003
11 S01E11 "The Shredder Strikes, Part 2" April 19, 2003
12 S01E12 "The Unconvincing Turtle Titan" May 3, 2003
13 S01E13 "Notes from the Underground, Part 1" May 10, 2003
14 S01E14 "Notes from the Underground, Part 2" May 17, 2003
15 S01E15 "Notes from the Underground, Part 3" May 24, 2003
16 S01E16 "The King" May 31, 2003
17 S01E17 "The Shredder Strikes Back, Part 1" June 7, 2003
18 S01E18 "The Shredder Strikes Back, Part 2" June 14, 2003
19 S01E19 "Tales of Leo" September 13, 2003
20 S01E20 "The Monster Hunter" September 20, 2003
21 S01E21 "Return to New York, Part 1" September 27, 2003
22 S01E22 "Return to New York, Part 2" October 4, 2003
23 S01E23 "Return to New York, Part 3" October 11, 2003
24 S01E24 "Lone Raph and Cub" October 18, 2003
25 S01E25 "The Search for Splinter, Part 1" October 25, 2003
26 S01E26 "The Search for Splinter, Part 2" November 1, 2003


The first season of the show received generally positive acclaim. As of December 2003 it had 2.89 million views on the 4kids website. It holds a current rank of 89%.

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