The Iron Nail: Part 3 Captain America can only watch as S.H.I.E.L.D. forces bombard Gungnir with everything they've got. It is a useless effort, however, as Gungnir easily shrugs off the bombardment and retaliates, blowing several Helicarriers out of the sky.
Maria watches the battle in horror and begs the Iron Nail to at least allow her to call off the remaining S.H.I.E.L.D. forces. The Iron Nail cruelly refuses and says he has made it his mission to free the world from S.H.I.E.L.D.'s militaristic regime. Maria attempts to attack the Iron Nail but Dr. Mindbubble easily subdues her. Steeling himself, Captain America makes his way across Gungnir's inner workers, beating any foe he comes across.
Meanwhile, Jet watches a newscast criticizing S.H.I.E.L.D.'s way and Captain America's allegiance to them. Jet takes a S.H.I.E.L.D. Flying Car and goes to help Captain America.
At Gungnir, Captain America confronts the Iron Nail, who transforms into a monstrous humanoid dragon. Captain America defends himself, but Dr. Mindbubble traps him in one of his bubbles. When Dr. Mindbubble asks how is he feeling, Captain America replies "Better" with a smile.
