Despite the unlikely union of those five heroes saving the world from Loki's threat, many doubts and questions remain about the Avengers. People, whether from the public or the media, still have difficulty seeing them as heroes. But can you blame them? They have in their ranks a pagan god, a creature responsible for death and destruction, who until yesterday was an enemy of the state, a pair of heroes who aren't all that great, and a man known for his lack of common sense and arrogance. It's not exactly a dream team.
Wanting to recreate the experiment that gave the Fantastic Four their powers, Simon Utrecht and his colleagues try to replicate it, generating an explosion that caught the attention of the Avengers. Even with the heroes' interference, it somehow worked, with their physiognomies changing thanks to the radiation exposure, gaining powers. They soon become the U-Foes, a team of heroes, sharing the spotlight with the Avengers. They quickly become New York's favorite heroes, despite the mess they usually leave behind when involved, which doesn't usually make it into the media. It's then that the Avengers discover that many of the incidents the U-Foes are involved in are staged, all just publicity stunts, putting other people's lives at risk for fame. This makes a confrontation between the teams inevitable. Especially when the U-Foes decide that New York is too small for them and the Avengers, leading them to attack the team.
