Although when the Freedom Fighters appeared in the first time in Justice League of America #107–108, they were considered natives from Earth-X, retroactive stories established the group as native from Earth-Two, who migrated to Earth-X. The earliest version of the Freedom Fighters was assembled on December 7, 1941. This group, however, failed in its attempt to stop the devastation at Pearl Harbor. Magno was killed. This version of the group was a retcon and their deaths were depicted in the pages of Roy Thomas' two books chronicling that era: All-Star Squadron and the Young All-Stars.
The DC version of the characters were said to reside on the parallel world of "Earth-X", where Nazi Germany eventually won a prolonged World War II due to a Japanese invasion of California and the development of nuclear weapons by the Nazis.
In addition to the core members of the "second team" which were the members seen in the seventies comic book, other Quality heroes joined later: Red Bee, Miss America, Manhunter, Plastic Man, and Quicksilver.
Since the Crisis on Infinite Earths, the Freedom Fighters have been based on the main DC Universe Earth, and were all members of the All-Star Squadron.
Years after the war, a third version of the team surfaced in the 1980s, with the rise of a new age of heroes. The Freedom Fighters, long with the Blackhawks and Justice Society, were captured by alien Appellaxians and placed in internment camps. They were freed by the new Justice League of America.
The Freedom Fighters regrouped for a brief time, but soon called it quits again when Firebrand was killed in battle with the Silver Ghost.
A fourth version of the team appeared as an auxiliary of the new Justice Society of America. The Human Bomb, Black Condor, and Phantom Lady were later killed by the Secret Society of Super Villains in Infinite Crisis #1. Damage was critically injured, Iron Munro was absent, and the Ray was captured by the Psycho-Pirate as part of Alexander Luthor's plans.
A new team of heroes debuted in the limited series Crisis Aftermath: The Battle for Blüdhaven, and later featured as Freedom Fighters members in the miniseries Uncle Sam and the Freedom Fighters, which premiered in July 2006. This team consists of new incarnations of the Phantom Lady, the Ray (Stan Silver), the Human Bomb, Doll Man, Bigfoot, Destroyer and Face. It is part of S.H.A.D.E., a secret American government agency chartered under the USA PATRIOT Act, led by Father Time. The new team conducts assassinations and other illegal acts against criminal and terrorist organizations. As issue #1 of Uncle Sam and the Freedom Fighters begins, the team is tasked to capture the revived Uncle Sam, who is in the process of forming his own Freedom Fighters team; Sam subsequently recruits the S.H.A.D.E. members to his cause, openly disapproving of their use of deadly force (although they continue to kill people even under Uncle Sam's guidance).
This version of the team is loosely based on notes by Grant Morrison and written by Jimmy Palmiotti and Justin Gray. Uncle Sam is portrayed as an almost Christ-like figure, returning from the dead, with the new Firebrand filling a John the Baptist role. Father Time is shown as aiding in Senator Frank Knight's being secretly murdered in the midst of his successful campaign for the Presidency of the U.S. and replaced by a sentient robot double, Gonzo the Mechanical Bastard, who proceeds with an agenda to implant RFID chips in every U.S. citizen by law and control them to bring chaos to the world through war.
In Uncle Sam and the Freedom Fighters #3, a team created by Father Time called First Strike attacked the Freedom Fighters but not before being stopped by the new Black Condor.
In #4, Condor manages to weaken First Strike long enough for the Freedom Fighters to fight back. Human Bomb kills one First Strike's members, Propaganda, and the team heads back to S.H.A.D.E. headquarters.
In #5, The Freedom Fighters defeat First Strike, but are taken out by a young woman claiming to be Miss America. While they are being tortured, S.H.A.D.E. headquarters is attacked by a new Red Bee and an old woman claiming to be the real Miss America.
In #6, the Freedom Fighters defeat the new Miss America with the original's help, forcing Father Time to retreat. As he begins "molting" into a new body, he gives the order to "activate the traitor." This turns out to be the Ray, who attacks and kills the new Invisible Hood and calls down giant reinforcements.
In #7, The Freedom Fighters face off against the Cosmigods as Uncle Sam calls them. In the midst of the battle the traitorous Ray is confronted by the returning Ray Terrill. As predicted Gonzo turns on the newly rejuvenated Father Time, who proceeds to give Uncle Sam the evidence to prove Gonzo's true identity. Sam presents the evidence to the world, and seemingly the final battle between First Strike and the Freedom Fighters begins.
In #8, The Freedom Fighters engage in battle against Gonzo's metahuman taskforce at the Washington Monument, and quickly gain support from the civilians. The public eye are now seeing them as real heroes, which was later revealed to be part of Father Time's plan all along. He tricked Gonzo into believing that S.H.A.D.E was against Uncle Sam, while in truth he was preparing the Freedom Fighters to help combat a major threat in the future. Father Time captures Gonzo and turns him into an 'Orphan Box' in the shape of a pair of spectacles. He plans to use it against Gonzo's creator, the Shadow Demons. All of the metahuman taskforce members disappear into the timestream along with Father Time shortly thereafter. A week later, the new President appoints the Freedom Fighters the new directors of S.H.A.D.E.
In Countdown #38, the Freedom Fighters are seen trying to stop an unplanned nuclear missile launch, initiated by the Calculator.
In the new Freedom Fighters mini-series written by Justin Gray and Jimmy Palmiotti in 2007, Red Bee is captured by an alien insect swarm and transformed into a human/insect hybrid. At the same time, S.H.A.D.E. has planned to make the Freedom Fighters into media darlings to help increase faith in the government following the Amazonian incident.
Uncle Sam, Firebrand, Doll Man, and Human Bomb refuse to go along with the plan and return to the Heartland. For a time, the remaining Freedom Fighters become celebrities, part of a new group called the Crusaders. Red Bee later collapses in her apartment and a swarm of insects suddenly rise out of her body.
Phantom Lady, unable to cope with the media attention, goes on a binge spree, culminating in her drunkenly slicing a criminal in half on national television. Stormy is brought to the heartland, where her body is cleaned of toxins by Miss America.
Sam and Doll Man recruit the original Doll Man (Darrell Dane) from a micro-environment within the Pentagon. After the head of the Crusaders program, Robbins, tries to kill Red Bee, the Freedom Fighters confront him. It is revealed that Robbins has mental powers that he used to control the Crusaders — and Stormy — leading to her binge.
While the Crusaders and Freedom Fighters battle, Red Bee is overtaken by her insectoid side, and uses her pheromones to enslave the Crusaders and Freedom Fighters, and prepares to create a "hive" on Earth. Meanwhile, an attempt to cure the Doll Men and several other micro-sized individuals goes horribly wrong, as all of them are merged into a single mutant form. The mutant goes on a rampage until Emma Thompson reaches Lester. Red Bee is cured of her affliction by Langford Terrill, who had gained the powers of Neon the Unknown. The team then prepares to fight off an invasion by the insectoids. After their victory, the group go their separate ways, but Sam declares that they will be needed when the Crisis begins.
In the Blackest Night crossover event, Black Lantern power rings are shown heading toward the graves of Phantom Lady, Black Condor, and Human Bomb, presumably to revive them for use in the interstellar revenant army being assembled. Indeed, at least those three are seen later attacking JSA headquarters along with the undead revenants of the Society's members. These three Black Lanterns, along with Al Pratt's undead form, focus on attacking Damage, though they have little success, continually getting blown up, regenerating and rising again to attack him, until Jean Loring's revenant kills him.
A new ongoing Freedom Fighters series began in September 2010. However, it was canceled after only 9 issues.In the final issue of 52, a new Multiverse is revealed, consisting of 52 realities. Among the parallel realities shown is one designated "Earth-10", X being the Roman Numeral for 10. This new alternate Earth differs from the original pre-Crisis Earth-X. In original continuity, the Freedom Fighters were the only metahumans on the original Earth-X. However, the new Earth-10 is premised on the continued ascendancy of Nazi Germany, which was defeated in the original JLA/JSA/Freedom Fighters crossover. Earth-10 is home to the JLAxis, which consists of Nazi counterparts of the Justice League, who combat an alternate version of the Freedom Fighters. Prefigured by comments by Grant Morrison, this alternate universe is not the pre-Crisis Earth-X, which renders these new characters unrelated to previous versions.
In the New 52 continuity, the Freedom Fighters still inhabit Earth-10, but according to Grant Morrison's Multiversity revision of the concept, Kal-L landed in German territory in 1938. Hitler reverse-engineered the alien technology that the Kryptonian starship incorporated and released Kal-L/Overman on American forces in the 1950s which enabled Nazi Germany to win the Second World War. However, Overman became aware of the evil of his comrades after seeing the massive amounts of deaths of innocent people who didn't fit into the Nazi ideology. After Hiter died Overman and his government were able to establish a utopia. The Freedom Fighters still exist as a team of genetically enhanced metahumans thanks to the genius of the Earth-10 Dr. Sivana, but in revised and inclusive composition (The Ray is gay, Doll Man is a Jehovah's Witness, Black Condor is an African-American and Phantom Lady is Romani). The Freedom Fighters commit various acts of terrorism against Overman's post-Nazi regime while Overman is in conflict with himself as he still feels guilt over the ethnic and ideaological purges of the Hitler-era. In the Freedom Fighters most extreme attack, they drop the Earth-10's Justice League orbitial base on Metropolis, killing millions of people and even further grieving Overman.
The original Freedom Fighters appeared in Justice League Unlimited #17. A rogue US Government agency sends them against the Justice League. The roll call was Uncle Sam, Doll Man, Human Bomb, Phantom Lady, the Ray, and Black Condor. A line of dialogue in the story clarifies that the Ray included as a member of the Freedom Fighters is the father of the Ray who appeared in several episodes of the Justice League Unlimited animated series.
In the WildStorm miniseries The Authority: Revolution, the initial protagonists are a group called the "Sons of Liberty", a superpatriot group of the 1940s and 1950s. They consist of Paul Revere (super-strength and "broadcast empath"), Minute-Maid (super-strength), Johnny Rocketman (supersonic flight), the Human Hand-Grenade (with the power to shrink, explode, and re-constitute his own body), and Fallout (a man with undefined nuclear powers who wears a shroud). The group is a pastiche of the Freedom Fighters.
In the DC Comics universe, the "Sons of Liberty" were a paramilitary group that funded Agent Liberty.
In Countdown Presents: The Search for Ray Palmer: Superwoman/Batwoman #1, written by Freedom Fighters writers Justin Gray and Jimmy Palmiotti, Earth-11 was revealed to be an Earth home to gender-reversed versions of the heroes of New Earth. Among them were the Freedom Fighters, consisting of female versions of the Ray, Human Bomb, Black Condor, and, strangely, Etrigan, as well as a male version of Phantom Lady named Phantom Man. They are led by Columbia, a female version of Uncle Sam.
In an alternate timeline featured in The All-New Booster Gold #8, a group calling themselves the Freedom Fighters exists. It consists of Hawkman, Green Arrow, Anthro, Wild Dog, and Pantha.
In "Time of Crisis", the Crisis on Infinite Earths homage module for Mutants and Masterminds, the Übermenschen team is composed of analogues to the original Freedom Fighters.
The original Freedom Fighters appear in the Batman: The Brave and the Bold episode "Cry Freedom Fighters!". The line-up consists of Uncle Sam as the leader, Doll Man, Human Bomb, the Ray, Phantom Lady, and the Black Condor. They travel to the planet Qward to defeat its oppressive Government led by the Supreme Chairman of Qward before he can lead his army to invade Earth.