Teenage Mutant Ninja Turtles / Usagi Yojimbo: WhereWhen #1

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 samurais 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!