Ultraman Cosmos vs Ultraman Justice: The Final Battle (ウルトラマンコスモスVSウルトラマンジャスティス THE FINAL BATTLE Urutoraman Kosumosu Bui Esu Urutoraman Jasutisu Za Fainaru Batoru?) is Ultraman Cosmos's 3rd theatrical film adaptation. It was released in Japan on August 2, 2003.
Story
While E.Y.E.S. prepare to safely transport the worlds monsters to a far off planet where they will no longer be troubled by humans an army of giant alien robots, called Gloker Pawns appear to stop the project. Ultraman Cosmos arrives in time to temporarily stop the attack when Ultraman Justice enters the battle aiding the alien invaders. Cosmos is defeated by Justice and the Aliens destroy the spacecraft that were to be used as transports for the monsters. It becomes apparent that these aliens don't want Earth's species to leave the planet.
With Cosmos out of the way the invaders begin an onslaught against the Earth's major cities. Every attack is witnessed by a mysterious woman in black who shows no emotion and no desire to interact with any of the victims. Without Cosmos the world is defenseless.
It is soon revealed that the mysterious woman is Justice who has been controlled by the invaders to oversee their plans. Justice appears at a meeting of top level E.Y.E.S. leaders to deliver a message from the invaders. In the near future life on Earth will become a threat to peace in the Galaxy. The Aliens have come to destroy all life on Earth then restart it with new species that will be more acceptable to the other planets with their ultimate weapon, a massive space craft called Giga Endra. The destruction of Earth will begin in 35 hours and there will be no negotiations. As the Earth's forces try to stop the advance of Giga Endra, nothing in their weapons are powerful enough to so much as scratch it.
Through interaction with a kind young girl and her puppy, Justice is able to see the good in mankind and break free from alien control as two Gloker Pawns combine to form the Gloker Rook as they're being attacked by Earth's monsters and defeat them. Juctice attacks the Gloker Rook and after a fierce battle, with EYES' help, destroys the robot. But the aliens release their next robot, the Gloker Bishop. Try as he might, Justice is not strong enough to defeat it but Cosmos' friends combine their energies to resurrect Cosmos. Holding no bad will against Justice, Cosmos recharges him and the two take on the Bishop.
With the combined efforts of the Ultramen the Gloker Bishop is overcome, but the aliens have another trick up their sleeve, Giga Endra. The massive robot is far too powerful for the duo to overcome and nearly kills the two. But they refuse to be beaten and combine to form Ultraman Legend. The super Ultraman catches Giga Endra's beam and pushes back before loosing his ultimate move, the Light of Legend, and obliterating Giga Endra. With Giga Endra destroyed, the aliens know they have no hope to succeed in their goal and flee, leaving Ultraman Cosmos and Ultraman Justice to guard the Earth forever more.
In the ending scene, Julie and Musashi was eating sweet bits. Musashi's friends waves to him and leaves Julie behind. She smiled to him and everyone in the end of the scene.
