Appearing in "Avengers Underground"
- T.A.R.B.I.E. (Destruction)
- Doctor Strange
- Attuma (Mentioned)
- Iron Man Armor MK L
- Falcon Armor
- Hawkeye's Bow and Trick Arrows
- Black Widow's Gauntlets
- Captain America's Shield
- Zarda's Sledge
- Power Prism
- Ant-Man's Suit
- Ant-Man's Helmet
- Pym Particles
Synopsis for "Avengers Underground"
The Squadron Supreme has taken over Earth where they managed to thwart Atlanteans on Attuma's side, shackle Red Hulk, trap Doctor Strange in a special trap, and keep Spider-Man occupied with one of their robots. Unbeknownst to the Squadron and the rest of the world, the Avengers are in hiding and working on a plan to save the planet and stop the Squadron Supreme once and for all. The Avengers pull a surprise attack on the Squadron Supreme that not even Nighthawk is prepared for. In desperation as part of his contingency plan, he has Hyperion absorb Nuke's powers and orders him to destroy the planet by blowing up it's core.
Zarda, Doctor Spectrum, Speed Demon and Nighthawk are somewhat outmatched by the Avengers they previously antagonised:
- Hulk is still mad at Speed Demon for the Speed Time incident in Terminal Velocity.
- Ant-Man is shown having built a more fuctional Power Amplifier since the latest one's failure in Spectrums.
- Thor still disapproves Zarda's reputation since Midgard Crisis.
- Falcon claims to still have made the right decision on staying with the Avengers and not joinning the Squadron as Nighthawk once offered in Nighthawk.