Power Rangers: Samurai (often abbreviated as PRS or Samurai) is the eighteenth series entry of the Power Rangers franchise. It is an adaption of the 33rd Last episode : The Ultimate Duel. Official Power Rangers website where you can watch fun videos, play games and shop Power Rangers products. Calling all Power Rangers fans!. Power Rangers: Super Samurai (often abbreviated as PRSS or Super Samurai) is considered the continuation of the eighteenth series entry, and the nineteenth Previous Samurai : next; Megaforce.