Teenage Mutant Ninja Turtles is an ongoing American comic book series published by IDW Publishing. Debuting in August 2011, it was the first new comic incarnation of the Turtles to debut after the franchise's sale to Nickelodeon in October 2009. It is the fifth comic book series in the franchise's publication history and serves as a reboot of the franchise's story and characters. The IDW Turtles series reimagines the franchise's titular characters—brothers Leonardo, Donatello, Raphael, and Michelangelo—as sons of Hamato Yoshi, a member of the Foot Clan led by Oroku Saki in feudal Japan. When Yoshi leaves the Clan, Saki (who will later be known as Shredder) murders Yoshi and his four sons. In modern times, the spirits of Yoshi and his sons are reincarnated as a rat and four turtles, respectively, in a research laboratory owned by Baxter Stockman, a scientist who has secretly allied himself with the extraterrestrial Krang. After coming in contact with the alien mutagen, Yoshi and the turtles are transformed into intelligent, humanoid beings. Living in the sewers, Yoshi (now called Splinter), remembers his past life and begins to train the turtles in the art of ninjutsu. Allying themselves with April O'Neil and Casey Jones, they are threatened by various foes old and new. The initial creative team on the IDW series consisted of Turtles co-creator Kevin Eastman, who collaborated on the plot and the page layouts, writer Tom Waltz, and artist Dan Duncan. In 2017, it became the longest-running comic book series in the franchise's history, surpassing Archie Comics' Teenage Mutant Ninja Turtles Adventures, which ran from 1988 to 1995. Starting from issue #101, writer and artist Sophie Campbell took over as the sole lead writer before the series was relaunched in 2024 with Jason Aaron taking the mantle.