Cover A Regular Stan Sakai Cover
 
Written by
Stan Sakai
Art by
Stan Sakai
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!