Power Rangers: Season 21, Episode 20

21 - 20: Legendary Battle (2)

The Armada's vicious assault has sent the Rangers into retreat and humanity has only one night left before the end of all things. Troy and Orion head into space in a last desperate bid to halt the Emperor's advance while legendary Rangers of the past step in to offer aid where they can and help the struggling citizens. It all builds to a final war between the Armada and legions of Power Rangers for the fate of the Earth and the very galaxy...