Go! Go! Loser Ranger!

Fighter D is intent on beating the Ranger Force for real after the Sunday Showdown between the monsters and the Dragon Keepers is revealed to be a facade.

Hibiki discovers Fighter D's real identity through his conversation with Yumeko. At the same time, D agrees to work with Yumeko and infiltrates the Red Garrison to steal the Divine Artifact, only to find himself in a predicament.

Jin Himura confronts the Red Guardian during the sacred banquet for first-class rangers; a conflict arises as Aran Hekiru, a blue third-class cadet, pursues Fighter D and discovers his link with Hibiki.

Things get off to a bad start when Kai Shion, who has his own goal in mind, teams up with Fighter D for the final exam. They work together to take on Shun Tokita, who doesn't seem to want them to pass the exam.