Teenage Mutant Ninja Turtles/Usagi Yojimbo: WhereWhen — IDW Publishing
Issue: #1 Y
The Teenage Mutant Ninja Turtles pursue the evil cyborg genius Dr. WhereWhen through a time portal…and emerge in feudal Japan! There, they encounter Usagi Yojimbo, 20 years into the samurai’s future but decades after the arrival of Dr. WhereWhen...who has already carved himself a fiefdom using mechanized clockwork samurai robots…with the intention of conquering both the past and current timelines!
Creators: Elle Mangin, Sarah Meyer, Stan Sakai, Hi-Fi Design, David Petersen, Jason Keith, Scott Dunbier, Ryan Brown, Kevin Eastman, Johnny Desjardins, Sajad Shah, SKAN, In-Hyuk Lee, Emil Cabaltierra, Peter Marshall Smith, Ben Harvey, Jeremy Clark, Vincent Rush, Aaron Bartling, Edison Neo
Characters: Usagi Yojimbo, Gen, Raphael, Donatello, Michelangelo, Leonardo