Earth-3999

Earth-3999 is a reality that is home to the superhero team, The Champions.

Prehistory
The Kree came to earth and experimented with humans to genetically modify them into weapons (giving them powers), using a process called Terrigenesis. Their first test subject Hive was made to command the army of modified humans, but Hive turned the army against the Kree and drove them from Earth. After the Kree left their experiments, the experimented humans formed their own secret society calling themselves the Inhumans. Hive led them, until the Inhumans and the regular humans turned on Hive and banished him to an alien world that they called Maveth through the Kree Monolith. A cult formed not long after made out of Hive's followers that's purpose was to bring Hive back from Maveth. That cult would be renamed in the 20th Century as Hydra.

World War II
During World War II, Hydra had successfully infiltrated much of the German regime. Allied forces scrambled to stop this ancient conspiracy, and successfully form a team of heroes called, the Avengers, consisting of Captain America (Steve Rogers), Iron Man (Howard Stark), and Hulk (Thunderbolt Ross). And while the Avengers did defeat Hydra at the expense of Rogers being MIA for decades and the Allies won World War II, nobody could have predicted what Hydra would be able to infiltrate the world governments.

Age of Heroes
It is a new day in the world, the Avengers have returned to the world with new members, backed by the government agency SHIELD. However, an accident at a SHIELD lab in Jersey City causes the inhabitants of the city to enter terrigenesis. Numerous people in the city become superhuman.

Terrigenesis
At a party hosted by Zoe Zimmer, a girl named Kamala Khan leaves because her Muslim culture was being insulted. While leaving, a strange cloud covers Jersey City. After passing through, Kamala has become a shapeshifter. Initially, she transforms into a blonde woman in a leotard and starts acting like a hero. But she finds the form uncomfortable and goes for a more casual look, becoming Miss Marvel. Eventually, other heroes started to appear: Cyclops, Ghost Rider, Hulk, Iceman, Inferno, Phoenix, Quake, Spider-Man, and Wasp. They are quickly recruited into the Avengers and put up a good display. However, Phoenix, Inferno, Ghost Rider, and Cyclops suspects something is wrong, feeling like their first mission was staged, citing how Phoenix noted that something was wrong with their minds. The group relents and investigates the Raft, the government sponsored prison designed to hold supervillains. They start finding records of supervillains breaking out of the prison on a weekly basis. This contradicts statements about the supervillains gears being traded around on the black market, leading to a further investigation. But SHIELD agents come to apprehend them for unrestricted access. The group is forced to flee, but not before Ghost Rider uses the penance stare on a SHIELD agent he deemed guilty. In the stare, he learnt of a location in the middle of nowhere called Fort Jones, where they find two things: The frozen, living body of the original Captain America, and a supercomputer created by SHIELD called Ultron. It admits that in the Cold War, Hydra had secretly infiltrated SHIELD and turned it into a front for Hydra, with the Avengers their main enforcers. Left no choice, the information is leaked onto the internet and are forced to watch the fire they created. SHIELD is put under scrutiny, and the Avengers are brought into the US Government for the Thunderbolts Program. After that, the ten heroes are approached about a new team: The Champions.

Heroes For Hire
From the fall of the Avengers and SHIELD, new teams are created: The new Thunderbolts lead by the revived Steve Rogers and Howard's son Tony, the original team now considered the Dark Avengers, and the team funded by Rand Industries called the Champions.

Heroes For Hire

 * Doctor Bruce Banner
 * Doctor Helen Cho
 * Matt Murdock
 * Jessica Jones
 * Luke Cage
 * Danny Rand
 * Doctor Claire Temple
 * Colleen Wing
 * Foggy Nelson

Thunderbolts

 * Red Hulk (Thunderbolt Ross)
 * Speedball (Robbie Baldwin)
 * Songbird (Melissa Gold)
 * Hawkeye (Clint Barton)
 * Deadpool (Wade Wilson)
 * Captain America (Steve Rogers)
 * Iron Man (Tony Stark)
 * Winter Soldier (Bucky Barnes)
 * Black Widow (Sharon Carter)