The Great Science War

The Great Science War is a war that went on for 20 years against Dexter "Angel" Saki and Susan "Mandark" Astronomanov to see who was the greatest science of their generation. What originally was just a contest to see who was the great inventor soon escalated into a war that destroy the universe, twice.

Movie Events:
It was reveal that over 3 years ago, Angel created a device called "The Nuclear Core" which is said to be the most dangerous device on earth. While Angel deem it as her greatest invention, she also deem it to be far to powerful for anyone on earth, or in the universe, to handle so she had it contain within the deepest part of her lab where nobody would be able to find it.

Fast-forwards to 3 years later, Mandark caught wind of the nuclear core's existence and wishes to harvest it's powers for his own twisted game, but Angel has prevented his achievement at every turn and it seem to remind this way for 5 additional years. 15 years later, Angel was promoted to CEO of her father's company while Mandark became the lead science of a rival tech company and was considered their top employee. However, this did not last as Angel's father's company quickly ran the rival company out of business after a incident that whine up nearly killing the Queen of London. Mandark kept hopping from company to company with little success as TCRI (Techno.Cosmic.Research.Insitiue) kept running off the company as, due to Angel's rapid success, made the company the largest tech company in the world, Mandark soon had no choice to work for her rival's company under the supervision of Baxter Stockman.

When the two turn 16, Mandark finally attend the nuclear core which result in him changing the world to how he see fits resulting in a 10 year war between the two scientist. After the nuclear core was removed from Mandark's machine, the impact not only reverse the damage Mandark as done to the world, but it also resulted in Mandark's body being destory, but instead of killing him in the process, he was instead he lived on through his brain.

50 years later, it is reveal that Angel became known as a hero, despite her bad actions, after saving the world from Mandark. Mandark was place in a museum along with all of Angel's old inventions except for the Ultimatrix, Antirix, the nuclear core, and N.Torphy.

Show Events
The events of the show and the events of the movie are largely the same except with a few key difference either being alter or change due to the law of time traveling.

Year: 2000 (4 years prior to New Operation)
The rest of the 4 years involve the two getting into petty fights.
 * Angel encounter Mandark for the first time.
 * Angel completed her Nuclear Core and had it seal up so it wouldn't fall into the wrong hand and risk of destroying the universe in the process.

Year: 2003 (New Operations)
Mandark did not appear much in the show and when he did, he was mainly a cameo. His first major appearance was "What's old is Evil", where Mandark was working alongside one of Angel's old robot, Maltruant, who gain sentient after being abandoned for nearly 10 years after Angel gave up working on him in favor of a To'kustar robot. The two work together to get their revenge against Angel which whine up destroying the universe after activin a remodified ultimate annihilator so powerful that even a Celestialsapien, like Alien X, would be destroy.

Angel and Mandark fought outside of their reality. Angel restore the Sword of Tengu, which was originally destroy in "The Great Battle part 2" and used Alien X to defeat Mandark. Both Mandark and Maltruant merge into Maldark which give Mandark Chronosapien abilities which gave him the advantage over Angel, even as an Ultimate Alien. She soon bounce back by turning into Feedback and with the power of the Sword of Tengu she was temporarily able to defeat the duo. The two grab Angel and almost destroy her until she pull out one of her Ultimate Annihilator and shove it into Maldark's body. The resulting blast erase Mandark and Maltruant from all of reality forever.

On her and Drake way back to their reality they whine up in the Void, but Maltruant wasn't completely done in by the Ultimate Annihilator's blast, as the charge from being activated outside of reality resulted in a negative feedback that will destroy the universe, again. When Angel and Drake return from the void, Angel turned into Clockwork and with the help of a Slimebiote prisoner, she was able to awesome the annihilator's negative feedback reverse it back at the annihilator itself. The blast undo the annihilator's activation and as a result the events of the annihilator fusion with Maldark's body was undone resulting in Maltruant permeant destruction from all of reality once in for all.

In "The Universe v. The Unknown", The Plumbers and Galactic Kids Next Door learned that Angel's recklessness as Alien X resulted in a number of universes being destroy. However, since nobody knew what happen after all of reality was destroy, the courts drop the case as they had no proof that a Celestialsapien, or anyone in the universe, was responsible for the destroy of multiple universes.

In "Guess who's coming for revenge", the university of science and technology created a partial machine that was able to create thing from a single molecule. However, the machine worked a little too well as it was able to bring back Mandark, now no longer merge with Maltruant, in an incomplete state as he still process Maltruant's Chronosapien dna as well as Celestialsapien abilites after his last encounter with Angel. He stole the Nematrix from Angel and used it to battle Angel. The two were at a stalemate until Angel turned into Clockwork and reverse the Partial Machine leading to Mandark, once again, being erase from reality.

It was also learned that Angel was the Alien X responsible for the destruction of multiple universes, but was unaware herself as they fought in a reality outside of their own which had no universe to destroy. The court eventually blame Mandark and Maltruant for the destruction of those universes.

In "The Great Unknown", Numbuh 1 and Rook learned that Angel's battle as Alien X with Mandark created new universes in their place. One universe treat Angel as a form of goddness. The rest of the universe, as well as the others, are still unknown to this day.

In "Ego Trip: Mandark Strikes Once Again", Billy Billionare, Charmcaster, Michael Morningstar, Lobo, and the Incursean manage to restore Mandark's atoms after collecting some Celestialsapien DNA from the Omnitrix which made Mandark's atoms stable again and decided to seek revenge with Angel once again by taking away her greatest creation as stated by Maltruant, the nuclear core.

After it being taken by Lobo, it reveal that Mandark build his new laboratory in the Null Void Chamber hoping that if all else fail, he'll be able to trap Angel there forever. The Plumbers and the Kids Next Door follow Lobo into the Null Void crossing path with Mandark, Lobo, Charmcaster, and Princess Attea, soon after Angel along with Slash, The Crys, and Vilgax follow after Mandark to retiree the Nuclear Core leading to a battle that nearly destroy the universe as Angel was unleashing too much power from Alien X. Despite their best efforts the two continue on fighting, however, the adults manage to steal the Nuclear Core before Angel's team, Mandark's team, The Kids Next Door, The Adult League, and The Plumbers all fought for the nuclear core. Numbuh 4 manage to get it, but because he wasn't willing to listen to Vilgax's warning this resulted in the universe being destroy for a fourth time leading behind Alien X (Angel) lifeless body, Professor Paradox, and an Elderly Rachel, in the void of nothingness.

Professor Paradox told Numbuh 1 the only one to restore the universe is if the nuclear core was rebuild, but neither of them have any clue of how to do that since Angel was the only person who knew how to make one in the first place and even than it was just an accident. With no other options, Numbuh 1 decided to seek help from Vader and Sapphire as their the only Celestialsapiens in existence. However, neither wishes to help Numbuh 1 deeming the universe to be a lost cause as there was no way to rebuild the nuclear core and was unsure if Alien X, or any Celestialsapien, how the power to rebuild something of that power. Numbuh 1 than made a deal with the two that if they give him to keys to Alien X and rebuild the nuclear core, they would help him in restoring the universe. They agree to it and Numbuh 1 gain access to Angel's Alien X and with some heavy focus was able to reunite the pieces of the nuclear core back as one and as per their pro