From infancy, Albrecht Krieger was fed a so called "miracle food" secretly developed by his father Siegmund. This substance made Albrecht super strong, incredibly agile and incredibly intelligent. Unfortunately, it did not make him invulnerable, for he was wounded in a fencing duel while in school at Hedelberg, gaining a livid scar across his face.
When Hitler came to power in Germany, Siegmund Krieger presented his son to him as the ultimate development of the superior Arayan race. Impressed, Hitler dubbed Albrecht Krieger Captain Nazi and had him smuggled into the United States as a weapon against American Superheroes.
Indirectly responsible for the creation of Captain Marvel Jr, Captain Nazi became his arch foe, going into seclusion at the end of the Second World War to plan his own world conquest.
When he learned that Captain Marvel and the rest of the Marvel Family had been trapped in suspended animation, Nazi placed himself in suspended animation as well, in a capsule timed to open when the Marvels were free once more.
Eventually, When he was Freed, he immediately begun to attract attention by robbing a Bank, where Captain Marvel (Disguised as Eben Batson) was making a deposit. Nazi impulsively aimed the gun at "Eben", suggesting to kill a hostage as a fear tactic. Batson attacked Captain Nazi and managed to lock him in the Bank's safe, without giving away his disguise.
Not long Later Marvel Was able to get away from the crowd long enough to change into his costume and fight Captain Nazi, which lead to Fawcett Bay, Where Marvel Attempted to Thwart Marvel with a Ship's anchor, and sent Nazi flying in to the ocean, where he was unwittingly saved by Grampa Freeman, while he was taking his grandson Freddy Freeman fishing. But his kindness was Not rewarded by Nazi and he Flung both Freddy and Grampa Freeman at Captain Marvel, who managed to save them both. however in doing so he left them with severe injuries.
Albrecht Krieger and his elder brother Wolf were born the sons of a pimp and a prostitute, both suffered physical abuse at their father's hand and young Albrecht witnessed his father beat his mother to death over groceries. He was at a later time recruited for the Nazi super soldier program, he was one of the only surviving applicants and quickly became known as Captain Nazi. Albrecht battled many Fawcett World War 2 era heroes such as Spy Smasher, Bulletman and Minute-man. He at an unknown time sealed himself inside a suspended animation chamber "so the dream of the Aryan race would live into the future". The Captain was released in modern times by his scientist brother and his granddaughter, Madame Libertine to carry on his legacy. He came to blows with Captain Marvel and during a battle was knocked into a lake, he was helped out of the water by Freddy Freeman and his grandfather Jacob and he showed his gratitude by killing Jacob and crippling Freddy. After Freddy received his powers as Captain Marvel Jr., he confronted Nazi and brutally defeated him, he was then sent to Europe to stand trial for war crimes.
Captain Nazi recently appeared with a group called The Fourth Reich and battled The Justice Society. They defeated the JSA and took control of the planet by using Obsidian's power to blanket the Earth. Mr. Terrific sent a message back in time to himself when he was in a coma. He was able to tell the JSA what to expect and how to defeat them so this possible future would not occur.
"Captain Nazi Brigade"
There have also been several attempts to mass produce Captain Nazi.
An unofficial name used to identify the army of 100 Nazi Sympathizers who were, through unspecified means (though in all likelihood Scientific augmentation), granted powers comparable to their namesake Captain Nazi (Albrecht Kreiger.)
This organization first appeared in Wonder Woman #14 (January 2008) as an invasion force seeking to conquer Themyscira and transform it into their New “Fatherland.” Despite the fact the island was virtually uninhabited their efforts were repelled by the combined might of Hippolyta and Wonder Woman. After their defeat their activities as well as their current numbers are unknown.
While their combat skills were significantly less those of an amazonian they exhibited proficiency in basic weapons and military tactics.
Ironically despite their fascist beliefs several of their members displayed an appreciation for historical discoveries and a degree of compassion for the animal kingdom.
In nearly every incarnation of Captain Nazi the individual has exhibited the powers of:
Justice League Unlimited
In the TV series Justice League Unlimited, the episode "Patriot Act", The General uses what is called the "Captain Nazi Serum" to mutate himself into a hulking monster to battle the Justice League. According to the episode, during World War II, Nazi scientists created the serum to create a super-soldier called "Captain Nazi", but the entire project was sabotaged by Spy Smasher before any super-soldiers could be made (this story is a reverse homage to the origins of Marvel's Captain America).