Power Rangers: The Dark Rangers Turn Good

On Lord Zedd's fortress on the moon, at Goldar's suggestion, Lord Zedd decided to put his Dark Rangers (Rocky, Adam and Aisha) through a test! If they could defeat an army of Z-Putties using only their natural karate skills, they would be given the Crystal of Darkness, a legendary crystal which the Forces of Evil used on Zordon's Rangers 10,000 years ago! Zedd wanted to give the Dark Rangers this crystal because, as Goldar explained, it would allow Zedd to maintain control of Rocky, Adam, and Aisha forever, provided that the crystal was not destroyed! The only one who knew of the crystal's power was Zordon! 
Lord Zedd and Goldar went down to Earth together to watch Rocky, Adam, and Aisha battle the Z-Putties! Rocky, Adam, and Aisha soundly defeated the Z-Putties, exceeding the expectations of Lord Zedd and Goldar, and were rewarded with the Crystal of Darkness!
Lord Zedd then sent the Dark Rangers to destroy the Mighty Morphin Power Rangers! The Dark Rangers summoned their Dark Zords and combined them to form the Dark Knight Megazord! The Crystal of Darkness landed in the Dark Knight Megazord's left hand and formed a powerful cannon! The Dark Knight Megazord took out its Dark Knight Megazord Saber! The Dark Knight Megazord Saber was in the Dark Knight Megazord's right hand! The Dark Knight Megazord attacked Angel Grove!
The Mighty Morphin Power Rangers were summoned by Zordon to battle the Dark Rangers! The 7 Power Rangers morphed into action and summoned the Thunderzords, White Tigerzord, and Dragonzord! The Thunderzords combined into the Thunder Megazord! The Tigerzord converted into Warrior Mode! The Dark Knight Megazord saw the Thunder Megazord, Dragonzord, and White Tigerzord! The Dark Knight Megazord fired its cannon at the Thunder Megazord, White Tigerzord, and Dragonzord! Then the Dark Knight Megazord charged at the 3 Zords! A battle began! The Thunder Megazord, White Tigerzord, and Dragonzord battled the Dark Knight Megazord! The White Tigerzord and the Dragonzord combined to become the White Tiger Dragonzord! Assisted by the Thunder Megazord, the White Tiger Dragonzord defeated the Dark Knight Megazord and forced it to retreat! Lord Zedd was enraged that the Power Rangers had defeated him again!
Back at the Command Center, Zordon praised the Power Rangers for their victory! He then told the Power Rangers that he has discovered who Zedd's Dark Rangers were. Alpha 5 then activated the Viewing Globe! The Power Rangers looked into the Viewing Globe and reacted in utter disbelief when they learned that the Dark Rangers were Rocky, Adam, and Aisha! 
Upon realizing that Rocky, Adam, and Aisha were Zedd's Dark Rangers, the Power Rangers were in shock and denial, but once they faced the facts, they immediately began planning to save Rocky, Adam, and Aisha from Zedd's power!
Meanwhile, Lord Zedd decided to create 7 Mutant Rangers to assist his Dark Rangers! He had Goldar bring out 7 Mutant Morphers for 7 Z-Putties to wear! Goldar brought out the 7 Mutant Morphers for the 7 Z-Putties who were chosen to become the Mutant Rangers! The 7 Z-Putties then used the Mutant Morphers to morph into the White, Red, Black, Blue, Yellow, Pink, and Green Mutant Rangers! Now Zedd had 10 Rangers! 3 of them were his Dark Rangers and 7 were his Mutant Rangers! Lord Zedd then sent Goldar, the Mutant Rangers, and the Dark Rangers to Angel Grove to destroy the Mighty Morphin Power Rangers!
The Mighty Morphin Power Rangers were summoned by Zordon to the Command Center! Zordon told the Power Rangers that Goldar, the Mutant Rangers, and the Dark Rangers were attacking Angel Grove! He also told the Rangers that they had to stop Goldar, the Mutant Rangers, and the Dark Rangers! Zordon also told the Rangers that they had to destroy the Crystal of Darkness to break Lord Zedd's grip on Rocky, Adam, and Aisha's minds! The Mighty Morphin Power Rangers morphed into action and teleported to Angel Grove! The Power Rangers then battled Goldar, the Mutant Rangers, and the Dark Rangers! The Power Rangers defeated Goldar, the Mutant Rangers, and the Dark Rangers! Then Lord Zedd used 8 grow bombs to make Goldar and the Mutant Rangers grow! Goldar and the Mutant Rangers grew to giant size! The Dark Rangers summoned their Dark Zords and combined them into the Dark Knight Megazord! 
The Power Rangers summoned the Thunderzords, White Tigerzord, and Dragonzord! The Thunderzords combined into the Thunder Megazord! The White Tigerzord converted into Warrior Mode! The Dark Knight Megazord, the Mutant Rangers, and Goldar saw the White Tigerzord, Thunder Megazord, and Dragonzord! The Dark Knight Megazord took out its Dark Knight Megazord Saber! Goldar, the Mutant Rangers, and the Dark Knight Megazord charged at the three Zords! A battle began! The Thunder Megazord, Dragonzord, and White Tigerzord battled the Dark Knight Megazord, the Mutant Rangers, and Goldar! The White Tigerzord, Dragonzord, and Thunder Megazord defeated Goldar and forced him to retreat! Then the Thunder Megazord, White Tigerzord, and Dragonzord defeated the Mutant Rangers and destroyed them all! Then the Thunder Megazord, White Tigerzord, and Dragonzord defeated the Dark Knight Megazord and disabled it!
Then the Power Rangers leaped out of their Zords! The Dark Rangers did the same! An epic battle began between the Power Rangers and the Dark Rangers! The Dark Rangers used the Crystal of Darkness to create a powerful Power Cannon! The Dark Rangers fired their Power Cannon at the Power Rangers! The Black Ranger said "Come on, guys! We can't give up! We're the Power Rangers!" The Red, Blue, Black, Pink and Yellow Power Rangers combined their Power Weapons to form the Power Blaster and aimed the Power Blaster at the Dark Rangers's Power Cannon! White Ranger aimed Saba at the Dark Rangers's Power Cannon! The Green Ranger aimed his Dragon Dagger at the Dark Rangers's Power Cannon! The Power Rangers fired on the Dark Rangers! The Dark Rangers were knocked to the ground! The Dark Rangers's Power Cannon was knocked out of their hands and transformed back into the Crystal of Darkness! White Ranger then aimed Saba at the Crystal of Darkness! He then fired on the Crystal of Darkness and destroyed it! Lord Zedd's spell was broken! Rocky, Adam, and Aisha involuntarily demorphed!
The 7 Power Rangers demorphed! They then went over to Rocky, Adam, and Aisha! When Rocky, Adam, and Aisha woke up, they were remorseful over what they had done! But the 7 Power Rangers were quick to forgive them, taking into account that they were under Zedd's evil spell! Tommy then invited Rocky, Adam, and Aisha to join the Power Ranger team! Rocky, Adam, and Aisha were reluctant at first, but the 7 Power Rangers convinced Rocky, Adam, and Aisha that they belonged with them and that they could use their Dark Ranger powers against Lord Zedd! At that, Rocky, Adam, and Aisha agreed to join the team!
Back at the Command Center, Zordon and Alpha 5 watched the fulfillment of a historic prophecy, that the Dark Rangers would fight for justice rather than evil! The 10 Rangers then morphed! Zordon then told the Power Rangers that the Dark Zords had been modified to combine with the White Tigerzord! When the Dark Zords combined with the White Tigerzord, they would become the powerful Dark Knight Mega Tigerzord! The Dark Zords combined with the White Tigerzord to become the Dark Knight Mega Tigerzord! The 10 Power Rangers thought that the Dark Knight Mega Tigerzord was awesome!
Meanwhile, Lord Zedd was enraged that he lost the battle! Lord Zedd yelled at Goldar! He said "Goldar, you have once again snatched grim and bitter defeat out of the jaws of victory! Next time, the Power Rangers will not fare so well!" 
Zordon summoned the 10 Power Rangers back to the Command Center! He praised the 7 Power Rangers for their victory over Lord Zedd and his forces of evil! He then confirmed Rocky, Adam, and Aisha as the Red, Blue, and Yellow Dark Rangers and Rocky, Adam, and Aisha promised to obey the Power Rangers's three main rules! Billy presented Rocky, Adam, and Aisha with their own wrist-communicators! Then all 10 Power Rangers huddled up for a Power Ranger high-five!