Power Rangers: The Tower of Time

SUMMARY
Power Rangers: The Tower of Time is the fourth and final installment of the Mighty Morphin Power Rangers adaption series. As the rangers wrap up high school they must travel to a hidden land call the Desert of Despair to revive the power energy, as their only way of stopping the inevitable assault of Rito Revolto and his army of Tenga Warriors. The rangers must locate the galactic warrior, Ninjor the creator of the power coins, in the Tower of Time. As the rangers are in a race against time, they must face their greatest challenge in the final showdown to protect the Earth's Zeo crystals.
PLOT
ACT ONE
In a neighboring galaxy, where Zordon and his team is from, Rito and his army are exiting the galaxy. The rangers, with Rita have left earlier with the mission to locate the nearest Zeo crystal, Earth, and protect it at all cost. Midway through the escape, Rito and his ship is destroyed and the rangers flee.
In the present, aboard their space base, Rito learns from Rita that Earth has one of the largest deposits of Zeo energy in the universe. Zedd's machine that was supposed to harvest it failed. Suspecting the rangers will be on the move, they have to locate the hiding spot of the Zeo crystals. In Angel Grove, media attention to the Marina Bay incident in the preceding months has brought concerns of whether the arrival of the rangers has been helpful. The rangers prepare to wrap up their senior year but are on edge as they prepare for a large challenge. Tension between Kimberly, Jason, and Tommy has gone sour. At a college visit in the next town, Tommy is in a tour group where he interacts with a girl named Katherine Hillard (also in the group Adam Park and Tanya Sloan). At the command center Zordon is searching for an answer for the rangers depleted power coin energy. He knows Rito's return was inevitable once Rita had returned to Earth. At school, the teens attend an end of the year prom pep rally. The rangers have to leave to tend to a disturbance, a monster sent by Rita. After quickly handling it, the command center is attack and they race back as Rito lands on Earth and destroy the command center. Zordon, barely able to communicate, warns the rangers against using on their energy on him. They take the risk and in the process the thunderzords and the coins are destroyed. Afterwards they find an hidden access point to communicate with Zordon who tells them they must go to the desert of despair to seek the creator of the power coins, Ninjor. The access point is atop a mountain that happens to be a location where Rito intends to harvest he Zeo energy. The rangers take the Zeo crystals from the destruction of the command center and head out. Rita and Zedd are commanded by Rito to put their energy into him, making him nearly unstoppable. 
ACT TWO
The rangers locate the mountain that is swarming with the Tenga army. They manage to sneak in before being noticed on scanner in Rito's base. They are attacked and unable to morph struggle to move forward. The Zeo crystals allow them to unlock the portal to the desert of despair and they barely enter. Parts of the Tenga army get in and the rangers have to run from them. Lost they find shuttle within the unique geographic landscape. As the team grows closer in some respects, tension reaches new highs. They come across the dangerous alien creatures in the land aren't friendly. They have to fight them off without their normal ranger abilities. Rita, Zedd, depleted of power are commanded by Rito who needs to know the location of the rangers. Rita suggests the land of creator as the only known figure who can provide the rangers with their power energy, recalling the stories she heard from Zordon. The rangers continued walk through the desert of despair seems to be getting them nowhere, despite the map saying they are on track. The tension continues to rise as their frustration causes them an outburst. Jason decides to split from the group feeling unwanted, leaving ahead of them. Rito gathers an army breaking open the gate with the goal of tracking the rangers. His forces are unable to break through getaway however, the seal contains them. Jason after alone time waits the group to catch up. As they do, the temple statues come to life and battle them. The rangers have defeat these entering the temple and find the tower of time. As they enter they interact with Ninjor, who has grown old and wants to be unbothered. The rangers describe their dilemma but he is difficult to work with. Jason talks to him individually, where Ninjor reveals the red power coin was specifically designed to sustain unlimited energy, but his lack of focus and self belief is causing him issues. Aboard their base, Rita is untrusting of Rito's plan and wants to stop him. After the rangers try to summon the new powers, they fail and are disappointed. Ninjor tells them he has given them all he can offer and sends them back to the portal entrance, whee unknowing to the rangers, Rito awaits. The rangers argue, saying this whole quest was a waste of time. The desert of despair causes them to react strongly, causing Jason and Tommy to fight. Jason exits through the portal and is immediately captured by Rito who takes Jason to the space base. 
ACT THREE
The rangers are panicked and attempt to reach out to Zordon, who warns them there isn't any answer to what will happen. Zordon tells them where to find the location of an unfinished project to give some power. On the space base Rito lays out his goals to unlock the three charge points to open up a triangle that will allow him to harvest all the energy on the planet, in the process wiping out life in the process. A weakened Rita interacts with Jason who questions her submissiveness to Rito as he stripped them of their abilities. The rangers locate a device that allows them to use energy from the Zeo crystals. They now have to protect the town where the final access point is (the town where Tommy's future college is). Tommy runs into Kimberly, Tanya, and Adam, while being vague tells them people need to get out of the town. As the explosion on the mountain signals the beginning of the siege. Jason in a vision of Ninjor realizes the ed power coin is unlimited and allows him to break free and he standoffs with Rito among the ship, giving him time to escape. The Tenga army is swarming the town and the rangers use the machine to fight off them. Jason arrives to tell the rangers to summon their energy as they all realize inside they have untapped energy. The rangers morph up and are back into action. Rito who was damaged by Jason, is approached by Rita who instead of helping him finishes him, restoring power into her and Zedd. The battle of Angel Grove and the town next to it ensues. Rita and Zedd unleash everything and land on Earth to face off with the rangers. The rangers are able to summon the renewed thunder megazord and battle out. After the zords are again destroyed, they put all their energy into a final showdown between Zedd and Rita. Zack is fatally stabbed in the process. Jason and Tommy combine their abilities to vanquish Rita's staff, breaking the force that summons the army. Her and Zedd are vanquished into the Zeo energy field. The rangers mourn over the loss of Zack afterwards. Tommy and Jason make amends before Zacks funeral. The teens attend graduation and hold a moment of silence. Later on the group gathers and and play a message by Zordon who, along with ALPHA have a new hidden spot while the world settles. He thanks the rangers for their dedication and their sacrifice saying they will be honored among rangers of the past. The teens settle their conflicts and prepare to head on to what's next in life. The film ends with them driving away in their directions.
POST CREDITS SCENE
A light flickers highlighting a hallway to a base. A wall of computers turns on calling for ALPHA who enters saying "Yes Zordon!" who says its time to finish their newest project.