Space Racer's History
100 Years Ago
Space Racer is an alien whose gun fires indestructible blasts that will shoot through anything, and can only be fired by him. The blasts are lethal to Viltrumites as well. If anyone tries to take it or use it, the gun would fly right back into Space Racer's hands. Space Racer usually flies on a hoverbike as well, hence his name. Over 100 years ago, Nolan Grayson fought Space Racer in an asteroid belt and buried him under a pile of rocks, which prompted Space Racer to drop his gun. Nolan left the gun where it was so it would not fly back to Space Racer and give him a chance to escape by blasting his way out. Over a decade before now, when Nolan settled on Earth with Deborah Grayson, Nolan wrote a series of science fiction books known as Memoirs of a Space Adventurer, which was secretly about enemies of the Viltrum Empire. One of these books, The Man with the Invincible Gun, chronicled his fight with Space Racer, who he called "Space Rider" to conceal his identity.
Rescue and Recruitment
Years later, a series of events occurred in which Nolan betrays the Empire and is captured. Before being taken away by Kregg, Lucan, and some other Viltrumites, Nolan tells his son Mark to read his books. Mark asks his father's old friend Art about this, who gives Mark the books, including the one about the Space Racer.
Later, Nolan escapes captivity with the help of his new friend Allen the Alien, who brings Nolan to the Coalition of Planets, a resistance group fighting the Viltrumites, which is led by the Great Thaedus, another Viltrumite-turned-hero. Nolan and Allen are sent on a mission to gather things that can aid the Coalition's cause. The pair's first stop takes them to the asteroid belt where Space Racer was defeated 100 years ago at that point in time. Allen mentions that nobody has ever heard of Space Racer. Nolan discovers the gun and reaches for it, which flies back into Space Racer's hand. As Nolan and Allen dig through the rubble, Space Racer pops out, revealing himself to still be alive, and as Allen remarks, "having gone a long time without eating".
Space Racer asks for just one reason why he should not kill Nolan right now. Nolan, being the rash Viltrumite that he is, claims that Space Racer could not kill him last time and this time he is tired, while Nolan has help. Allen agrees, and Space Racer fires his gun, which strikes the asteroid and causes it to break apart, while its pieces collide with the rest of the belt simultaneously, causing a devastating chain reaction. Nolan grabs Space Racer and flies to safety with Allen, but Space Racer summons his hoverbike, which manifests itself and rams Nolan to put him in point-blank range. After a conversation with him, Allen convinces Space Racer that they are all on the same side now. Space Racer agrees to accompany them back to the Coalition, but still distrusts Nolan. Upon arriving to the headquarters on Talescria, Space Racer is subjected to medical tests and is proven to still be in great physical shape. Space Racer's metabolism is astounding and he is optimistic about working with the Coalition.
The Viltrumite War
A few months later, the Viltrumite War begins. Space Racer and the Coalition forces arrive at a Viltrumite Warship's location, thanks to Allen and Tech Jacket stowing away with a tracker. They rescue the two and leave. Later, Thaedus reports to Allen and Zach that he will have to disperse them, Space Racer, and Battle Beast throughout the galaxy, as they are the strongest Coalition fighters at the moment. Previously, Nolan, Mark, and Nolan's other son Oliver, dubbed Young Omni-Man, had been presumed to be MIA.
After the war technically ends, and the "Big Three" (Nolan, Mark, and Oliver) have returned, Thaedus gathers up all of the best fighters to end the threat of the Empire once and for all. The eight of them plan to take the fight to Viltrum, where the remaining Viltrumites have fled to. Aboard the ship, Oliver asks where Space Racer is, and Nolan tells the two that Space Racer will rendezvous with them after picking up some other creatures that can kill Viltrumites, Ragnars. As soon as the Viltrumite army approaches the group, Space Racer arrives and shoots at a Viltrumite, killing him. He then releases the Ragnars, which instantly kill two more. As the Coalition group kill more Viltrumites, their leader, Thragg, punches Space Racer off of his bike. After Thragg supposedly kills Oliver, Space Racer retrieves his bike and shoots his gun in the Viltrumites' direction. Mark, in his rage, attacks Thragg and says how he killed Conquest. While the Viltrumites are in shock, Thaedus calls Space Racer to him. Space Racer shoots his gun through the Viltrumite forces, while the other group members (minus Battle Beast, who is having too much fun fighting, and Oliver, obviously) fly as fast as they can right behind the blast. Tech Jacket and Allen are knocked away, leaving Thaedus, Nolan, and Mark to fly into the planet's core. As the gun's blast destabilizes Viltrum's core, the three Viltrumites plow through the remains, obliterating it and destroying the entire planet. In retaliation, Grand Regent Thragg kills Thaedus.
Thragg starts to ragdoll everyone in his rage. As Anissa and some other Viltrumites are beating up Allen, Space Racer kills one of them and grabs Allen. He takes off with Allen on his hoverbike, shooting and killing another Viltrumite who was grabbing the bike. Allen protests that they cannot leave their friends, but Space Racer tells him that they are even more outnumbered now that Thaedus is dead and Oliver is comatose. Space Racer's bike shoots out a grappling hook to grab an unconscious Tech Jacket, and the three of them depart to call for help. Later, Mark and Nolan are picked up by the Coalition, whom Thragg left alive. Allen is promoted to Thaedus's old position as Head.
Thragg's Exile
Later, another series of events occur in which it is revealed that Nolan is actually the descendant of the original Viltrumite Emperor, Lord Argall, whom Thaedus killed and Thragg replaced. Nolan assumes command of the Viltrumites, now stationed on the Moon, and banishes Thragg. In the meantime, Allen sends Battle Beast to an alien world to quench his lust for bloodshed by killing the oppressive ruler, while Space Racer goes along to chaperone. After he is done, Space Racer asks if Battle Beast is ready to come back to Talescria, who agrees before he is stopped by a local female named Thresha. She asks Battle Beast for permission to come with them, who accepts, while Space Racer looks on.
Battle Beast is soon given permission by Allen to engage Thragg in combat once they locate him. Six months later, Space Racer informs Battle Beast on a monitor that they have confirmed that Thragg is on Thraxa. Space Racer says that he is close by, but Battle Beast goes to the planet right away, and alone.
The battle rages on for days, after which Thragg kills Battle Beast before going unconscious. The Thraxans fire on the ship holding Thresha and Space Racer, who has joined her. Space Racer, similar to his behavior in the Viltrumite War, attempts to fly the ship away. Unfortunately, the ship is coming apart, the internal machinery is blowing up, and there are too many hostiles. Thresha orders Space Racer to attack them anyway, not caring if she dies. She cuts Space Racer's arm with her spikes, who knocks her out quickly. He attempts to escape, but the ship explodes, blasting him and the unconscious Thresha into space. Space Racer also goes unconscious, but he is still alive. Mark, Oliver, and a Space Crew rescue them. Thresha wakes up and starts attacking everyone, until Space Racer wakes up too and orders her to stop. She says that she cannot believe Battle Beast is dead, and Space Racer comforts her.
Space Racer delivers a report on Thraxa and the Thraxans to the Coalition High Council. The report states how the genetic makeup of Thraxans is such that Thragg could mate with them and produce a quickly-growing army of hybrid Viltrumites. Representative Elia states that Thragg must be found as soon as possible. After he is found, Allen dispatches Space Racer and a team to the planet, only to monitor him and not give away their position. After a while, Thragg finds the team in Space and kills everyone but the spy, who is on the planet, and Space Racer, who is on his bike. As Space Racer shoots his gun in terror, Thragg flies up faster over him, dodging the blast.
Five years later, we see that Space Racer survived his encounter with Thragg and joins the fight against the new Viltrumite empire.