When the threat of Earth being taken over by Rita Repulsa arose after she was freed from her dumpster prison on the Moon, awiseold sage named Zordon, who had established aCommand Centerin Angel Grove, recruited five teenagers to assume the power of theMorphingGrid to defend the planet as Power Rangers - Jason, Zack, Kimberly, Billy, and Trini. When the battle escalated, they would call on their individual assault vehicles named Zords and destroy themonsterswho threatened peace in Angel Grove, all while trying to live normal lives as high school students.
The Rangers have gone through many roster, Zord, and power changes. Rita gave the Dragon Coin to a new student at Angel Grove High- Tommy, who fought against the Rangers as the evilGreen Ranger, and later joined the team once the spell over him was broken. Tommy eventually lost his powers as theGreen Rangerand gained new powers as the White Ranger.
To defeat Lord Zedd, who arrived to take over Rita's task, the Rangers needed to upgrade their Dinozords into Thunderzords, and later bring back Tommy as the White Ranger. Shortly after, Jason, Zack and Trini left for Switzerland to attend a peace conference, and left their powers to three allies of the Rangers- Rocky, Adam and Aisha, who became the new Red, Yellow, and Black Rangers.
When the team lost their powers after an attack by Rita's brother Rito, the Rangers took a trip tothe Temple ofPower, where Ninjor gave them new powers and Ninja Zords, which were later joined by theShogunZords.
Kimberly's departure to train for thePan GlobalGames paved the way for Katherine, who took her place as the Pink Ranger. The Rangers' Power Coins were stolen by Goldar, and destroyed by Rita and Zedd, putting an end to the Power Rangers as we knew them, and setting forth the events that wouldtransformthem into Zeo Rangers.
