简介：TheplanetRosettahasbeentakenoverbytheBlackStararmyledbyCaptainDagger.TakashiShishidoandhismotherRosemaryescapedtoPlanetEarthafterhisfatherGouwascapturedbyDagger,whoisactuallyTakashi'seviltwinbrotherHiroshi!WhilelivingpeacefullyonEarth,Takashiattendsakung-fuschoolinJapan,andhasfourfriends,buttheyhadnoideathathewasfromanotherplanet,asecretonlyhismartialartsteacherTakamineknew.ButwhenCaptainDaggerinitiateshisattackonEarthusinghisarmyofvariousgiantmonsters,Rosemary(whoalsogoesbythecivilianname"Mari")givesTakashitheMegalon-Bracelets,withwhichhecantransformintothegiantlong-hairedwarriorMegalomantofighttheevilmonstersfortheprotectionofEarth.Earlyintheshow,Takashi'sfourmartialartsschoolfriends,SeijiKurogawa(atough,BruceLee-likefighter),HyosukeYuri(thecomedyrelief),RanTakamine(MasterTakamine'sdaughter&Takashi'sgirlfriend)andIppeiSaru(thelittlekid)discoverhissecretandRosemarydecidestoinvitethemtojoinTakashiinbattle.SoshegivesthemtheirownMegalonBraceletstotransformintoaquartetofmulticoloredmartialartssuper-warriorstofightalongsideTakashi!…