Following the apparent deaths of the Avengers, the Fantastic Four, and Dr. Doom battling Onslaught in Onslaught: Marvel Universe, they were "reborn" and certain aspects of their earlier stories were expanded with the intent of telling their adventures anew for modern generations. This was explained, in-story, as their having been transported into a pocket universe by Franklin Richards, the near-omnipotent, psychic son of Mr. Fantastic and the Invisible Woman, to save them, where they lived in the so-called "Franklin-verse", oblivious to what had happened to them. The characters' origins and histories were revised and updated circa mid-1990s for modern audiences. For instance, Ben Grimm fought as a pilot in the Gulf War instead of World War II, and Susan and Johnny Storm were explained to have been financial backers for Reed Richards' rocket, hence their presence on the mission. In addition, while Richards' goal of becoming the first man to get to Mars remained, it was revealed that he secretly aimed to explore the interstellar anomalies of that area. For this reworking, Marvel "farmed out" the properties to some of their former employees who had left the company to form Image Comics. Jim Lee's WildStorm Productions studios handled Fantastic Four and Iron Man, and Rob Liefeld's Extreme Studios took the reins of The Avengers and Captain America. However, after six issues, Marvel ended Liefeld's contract early, citing low sales on his two titles. Liefeld's titles were reassigned to Lee. Walt Simonson took over Avengers when it moved to WildStorm. Although the four titles in "Heroes Reborn" were slated for a 12-issue run, James Robinson wrote a thirteenth and final issue for each book. The storyline, entitled "World War III", was a crossover between the Marvel and WildStorm characters. The changes to the characters were controversial, provoking debates amongst fans. The change in creative team on Captain America was also controversial, since the pre-Heroes Reborn team of Mark Waid and Ron Garney had already been bringing increased sales and critical acclaim to the series. However, all of the titles experienced a large upsurge in sales. According to Lee, Marvel proposed continuing the Heroes Reborn lineup indefinitely, but under the condition that Lee would draw at least one of them; Lee refused. At the end of the storyline, the Fantastic Four and Avengers were returned to the mainstream Marvel Universe, again through the intervention of Franklin Richards, in the miniseries Heroes Reborn: The Return. The ensuing storyline, dubbed "Heroes Return" was once again created in-house at Marvel Comics.
The Heroes Reborn saga continues on Heroes Reborn: The Return, a four issue limited series. In the story, the Celestials took notice of Franklin's pocket universe and initially demanded that he now eliminate one of the two universes, but finally relented on the condition that all beings native to Earth-616 evacuate the pocket universe and never return. The heroes are gathered in a massive ship to leave the pocket universe. Characters as She-Hulk and several members of the Inhuman Royal Family were depicted as returning heroes, even though they were not among the missing heroes from Onslaught: Marvel Universe. As the heroes are travelling to their destination, Dr. Doom suddenly makes an escape out of the ship with Franklin, hoping to use the siphoning devices he created to steal Franklin's power. However, Doom is stopped by Mr. Fantastic and Thor who rescue the boy. Thor uses his hammer to create a portal, trapping himself and Doom on it. As soon as the remaining heroes break the boundaries between the two worlds, they all suddenly remember their past lives. Bruce Banner and the Hulk are merged back together into one singular being. The returned Anthony Stark possesses the memories of both the original and teenage Anthony Stark, and thus considers himself to be essentially both of them. The pocket universe was then placed under the authority of Ashema the Listener. Eventually, Thor is returned to Asgard, while Doom's whereabouts are left unknown.
Cancelled and relaunched titles
Fantastic Four Vol. 2 #13
Avengers Vol. 2 #13
Iron Man Vol. 2 #13
Captain America Vol. 2 #13
Journey into Mystery #521
Heroes Reborn: The Return #1-4
Fantastic Four #1-4
Iron Man #1-2
Captain America #1-3
Avengers #1-2
Thor #1
"Heroes Reborn" revisited
In 1999, Marvel collected Heroes Reborn: The Return #1-4 limited series re-titled as the Return of the Heroestrade paperback. It was re-released in 2009 as Heroes Reborn: The Return trade paperback again collecting the 4-issue mini-series, and also the Heroes Reborn one-shot specials from 2000: Doomsday #1, Ashema #1, Masters of Evil #1, Rebel #1, Remnants #1, Young Allies #1, and Doom #1. In July 2000, Marvel published the trade paperback Fantastic Four: Heroes Reborn, collecting Fantastic Four vol. 2, issues #1-6 under the 'Marvel's Finest' banner, but no other "Heroes Reborn" reprints followed for some time. With 2006 marking the 10th anniversary of the "Heroes Reborn" crossover, Marvel marked the occasion by having the reality-traversing Exiles team visit the "Heroes Reborn" Earth, in Exiles #81-82. The company also announced it was reprinting original "Heroes Reborn" series and produced trade paperbacks collecting issues 1-12 of the four titles. A new edition of Heroes Reborn: Fantastic Four trade paperback was released in August 2018. Also, Marvel announced that Jeph Loeb and Rob Liefeld would reunite in November 2006 for Onslaught Reborn, a five-part weekly limited series that would feature both Onslaught and a world similar to the "Heroes Reborn" universe. This was planned to tie in with the memorial scholarship fund established in honor of Loeb's son Sam.
Collected editions
Return of the Heroes - collects Heroes Reborn: The Return #1-4