The Manhattan Project, Part 1

The Manhattan Project is the thirty-ninth episode of Teenage Mutant Ninja Turtles (2012 TV series).

Major Characters

 * April O'Neil (Mae Whitman)
 * Casey Jones (Josh Peck)
 * Donatello (Rob Paulsen)
 * Fishface (Christian Lanz)
 * Karai (Kelly Hu)
 * Kraang (Nolan North) and Biotroids
 * Kraathatrogons
 * Leonardo (Jason Biggs)
 * Rahzar (Clancy Brown)
 * Raphael (Sean Astin)
 * Shredder (Kevin Michael Richardson)
 * Tiger Claw (Eric Bauza)

Minor Characters

 * 1987 TV series April (Cameo)
 * 1987 TV series Casey (Cameo)
 * 1987 TV series Donatello (Barry Gordon)
 * 1987 TV series Leonardo (Cam Clarke)
 * 1987 TV series Michelangelo (Townsend Coleman)
 * Raphael|1987 TV series Raphael (Rob Paulsen)
 * Baxter Stockman (Phil LaMarr)
 * Carlos Chang O'Brien Gambe (Jim Meskimen
 * Foot Bots
 * Jack Kurtzman (Robert Forster)

Plot
Leonardo considers asking Splinter for help while facing Shredder's new assassin; Donnie must put aside his rivalry with Casey in order to uncover a Kraang plot.

Trivia

 * The title used in television listings for this episode, as well as on nick.com, is "Wormquake!". However, the in-show title is "The Manhattan Project".
 * Kirby O'Neil's mutated form appears on a tabloid newspaper that April reads at Kurtzman's apartment. On the back of the paper is a human Chris Bradford advertising milk.
 * The episode released a week early (March 2, 2014) on official distributors for the series, including nick.com

Quotes
Michelangelo: (After seeing the 1987 versions of themselves.) "It's Us! Why do we look like dorks?"