FourathleticallyableteenagersalongwiththeirbrainyfriendBillyareselectedbyZordontofighttheevilofRitaRepulsa,hermonstersandherminionsafterthewitchisaccidentallyreleasedfromimprisonmentinanintergalacticdumpsteronthemoon.Laterintheseries,therangersarejoinedbyTommy,theonceevilGreenRangerdesignedforRita'sevil,butlaterwasdeprogrammedandspenttwoportionsoftheseriesbrieflyastheGreenRanger.Overtime,somerangershadtopasstheirpowerstoothersaswell.ActionscenesandsceneswithRitawereeditedfromfootagebasedonJapaneseactionsagas.ReplacementvillainLordZeddwasdesignedintheU.S.WrittenbyOndreLombard{[email protected]}