The Squadron Supreme consisted of Hyperion, Power Princess, Nighthawk, Speed Demon, Doctor Spectrum, and Nuke. Being partially responsible for the chaos enveloping their world, they chose to take control of the planet to solve its problems. As such they took active responsibility for more than just fighting crime and supervillains and took on poverty and hunger, the environment and public health.
It was believed all but Hyperion were killed when the planet was destroyed in a civil war.
Nighthawk appears on Earth and uses S.H.I.E.L.D.'s contingency plan on the Avengers. When Falcon is his captive, Nighthawk mentioned that he is the "architect" of the Squadron Supreme while Hyperion was the "hammer" of the group. It was also mentioned that the rest of the Squadron Supreme are heading to Earth. At the end of the episode, Hyperion springs Nighthawk from his cell on the Tricarrier. They both leave to get their team back together. 
Using the Reality Gem, Dr. Spectrum alters reality so the Avengers are all criminals with darker costumes and the Avengers Tower is headquarters of the Squadron. Due to a spike in energy, Iron Man sees the real reality and manages to convince his team to come together. However Spectrum has created a machine that will give him complete control over reality, and plans to alter history so the Avengers were never born. Captain is able to get a hold of the stone and revert reality back to normal. The Squadron leaves with Nighthawk activating charges placed at the base of Avengers tower. The Avengers manage to prevent the structure from falling onto New York in time for J.A.R.V.I.S. to activate the repair systems.
Zarda battled the Crimson Dynamo in Russia.
The Squadron Supreme's fastest member Speed Demon was on the loose and wreaking havoc throughout Stark Tower
The Citadel Hawk-Plane
- They are an obvious homage to the Justice League of America.
- Nighthawk - Batman
- Hyperion - Superman
- Doctor Spectrum - Green Lantern (John Stewart)
- Speed Demon - The Flash
- Power Princess - Wonder Woman
- Nuke - Firestorm
- While the team is named after the original hero incarnation, they appear to be mostly based off of the evil incarnation; Squadron Sinister.
- 8 appearance(s) of Squadron Supreme (Earth-12041)
- 2 mention(s) of Squadron Supreme (Earth-12041)
- 2 image(s) of Squadron Supreme (Earth-12041)
- 8 member(s) of Squadron Supreme (Earth-12041)