Denji Sentai Megaranger (電磁戦隊メガレンジャー, Denji Sentai Megarenjā?), translated into English as Electromagnetic Squadron Megaranger, was Toei Company Limited's twenty-first production of the Super Sentai television series. The footage was used in the American series, Power Rangers in Space. Megaranger premiered on February 14, 1997 and concluded on February 15, 1998.
Kenta Date, a high-school student, is the champion of an arcade video game, "Megaranger". A company known as INET (International Network of Excel-Science and Technology) invites him to their laboratories along with his school friends and members of the Cybernetics club, Miku Imamura, Kouichiro Endou, Chisato Jougasaki, and Shun Namiki. Soon after a small tour of the INET HQ, the building comes under attack by the evil Neijirejia, an evil force lead by Dr. Hinelar, to conquer this reality. Dr. Kubota, INET's chief, reveals that Megaranger was not a video game, but a combat simulator to find recruits for a super fighting team against the Neijirejia. While the INET HQ is ravaged and Neijirejia warrior Yugande destroys the base, Kubota gives Kenta and his friends special devices known as 'Digitizers'. By entering the key-code "3-3-5" and shouting "Install, Megaranger!", Date, Imamura, Namiki, Endou and Jougasaki become the fighting team known as Denji Sentai Megaranger.
After a fight against Yugande, the Megarangers retreat from the exploding INET HQ, within the Galaxy Mega. Guirail, sent by Javious, injures Yugande. Dr. Hinelar poisons Guirail, turning him into Mad Guirail. The Megarangers abandon the damaged Galaxy Mega and fly the Delta Mega to the INET Moonbase where INET member Yuusaku Hayakawa has created the Space Mega Project. The Rangers destroy Guirail with Mega Voyager, a new mecha made of 5 Voyager Machines. Hayakawa becomes MegaSilver, but can only fight for 2.5 minutes, although he conquers time limit. Dr. Hinelar creates the evil Nejirangers, draining energy from Javious the First after both Nejirangers' and Javious's destruction. Dr. Hinelar creates Nejirejia City. The Nejirangers are resurrected but turned into data cards. Dr. Hinelar learns the MegaRangers' identities, and Shibolena accesses INET database and locates the moonbase. Yugande gains a powerful, red form with a special circuit, and attacks the moonbase, forcing Dr. Kubota and his INET team to flee in the Galaxy Mega and regroup with the Megarangers on Earth, while Hayakawa stays at the moonbase to salvage the Voyager Machines buried in the rubble. After the Megarangers kill Yugande, Dr. Hinelar turns into a monster, and the Grand Nejiros base transforms into the Death Nejiros. Hayakawa finishes the salvage. Hinelar self-destructs Death Nejiros, destroying Mega Voyager high above the city when the Megarangers risk their lives to prevent damage to the city by carrying Death Nejiros into the sky. The Megarangers survive, and celebrate their High School graduation with Dr. Kubota and Hayakawa.
- Main article: Villains of Denji Sentai Megaranger