Steve Rogers grew up in Brooklyn during the Great Depression, a scrawny child protected from neighborhood bullies by his best friend "Bucky" Barnes.

Horrified by newsreel footage of the Nazis in Europe, Rogers was inspired to enlist in the Army around the time that the United States entered World War II.

Fully committing himself to the American war efforts, Rogers bid farewell to his sweetheart Gail Richards, becoming Captain America.

[1] For the next three years, he underwent numerous covert operations, often accompanied by Bucky, now a war photographer, and sometimes alongside James "Lucky Jim" Howlett.

[3] He would later come into battle with Herr Kleiser, who possessed a prototype atomic bomb, made with alien technology, and was meant to target the White House.

[15] The relationship would later become sour as Rogers's 1940s personality created a generation gap, causing Janet to secretly go back to her ex-husband.

[30] Captain America was framed by Black Widow for the assassination of Hawkeye's family and was hastily subdued and arrested when he was visiting Bucky for consolation after his relationship with Janet ended bitterly for him.

When the Liberators attacked the United States, he was freed by the Wasp and defeated multiple copies of the Schizoid Man rather than killing him while escaping the prison.

[33] After the Liberators are defeated, Steven Rogers somberly looked over the Colonel's body being transferred away by S.H.I.E.L.D., and thought of what he said to him about America's current role in the world.

Seeing how having the Ultimates working with the United States government "policing" the world would produce similar results to their battle against the Liberators, Rogers and his team decided to leave S.H.I.E.L.D.

[34] After the Liberators short occupation, Captain America helped in the rebuilding of New York City until he found out that his old Nazi nemesis Arnim Zola did not die; instead the O.S.S.

A white survivalist group called the "Marauders" attacked the military base where Zola's AI was being held and stole this intelligence, along with some other weaponry.

[2] Before the events of the Liberators' attack, Steve befriended T'Challa, the Black Panther, and trained him in preparation for making him a member of the Ultimates.

After Steve alarmingly discovered that T'Challa's throat was heavily damaged and that these injuries caused his muteness, he pressed Fury for more information.

[35] Captain America eventually established a means of communicating with T'Challa and learned of the man's desire to return to Wakanda to see his father.

Since no one but Cap had ever seen T'Challa's true face, he decided to take his place in the Ultimates, enabling the real Black Panther the chance to return home.

[41] Shortly after defeating Magneto, Captain America, Iron Man, and the military are searching for survivors in the ruins of New York City.

[44] After learning that the Red Skull's words to him were true and that his mother is Gail Richards, Captain America decided to personally confront his son, in which he abandoned the Ultimates and attacked S.H.I.E.L.D.

Rogers created a plot to which he would place Fury's Ultimates who were coming for him to capture him, with tracers, and allow him to later find his son, whom the Avengers were also in pursuit.

After the Red Skull was in custody, Rogers emotionally bore witness to Gail being briefly reunited with their dying son.

[48] Steve Rogers is currently a member of the New Ultimates, and helped Valkyrie, Zarda, Iron Man and Hawkeye fight off an attack from the Defenders, who managed to steal Thor's hammer before they retreated.

Swept up in nationalistic pride, he attempted to join the United States Army in order to serve overseas, but due to his original physical stature he is rejected.

Due to the formula of the Super Soldier Serum having died with the death of Dr. Erskine, he went through a painful combination of steroids as well as physical and psychological training in order to prepare for his assignment.

[51] Rogers, sensing that Carol told him this in order for him to make it look like he went AWOL, subdued Danvers and left to hunt down Frank Simpson.

Unfortunately, the source of this news along with the rest of the village has a synthesis of the Super Soldier Serum via Simpson's blood flowing through them and Steve is captured and taken prisoner.

The page then fades to black as Simpson enters to execute Steve, but with a sound of physical pain emanating from the prison cell.

Aware of the fact that he was surrounded by gun toting villagers with Super Soldier Serum flowing in their veins, he warns them that if they persisted in aiming to kill him, he will treat them as enemy combatants and show them no mercy.

[53] Ultimate Cap is largely absent during the series of events initiated by Reed Richards, leading to the destruction of Washington and death of POTUS Barack Obama.

"[56] When the Maker collaborated with High Evolutionary to destroy the Superflow that kept the different universes separate in order to merge them into one reality, the Ultimates members Captain America, Iron Man, Giant-Man, Wasp, and Hulk were revived where they were to help Eternity fight the First Firmament.

Unlike his Earth 616 counterpart, however, Ultimate Captain America's physical attributes have been augmented to superhuman, rather than peak human, levels.