While a storm rages across Battleworld, the Wasp cozies up to her captor, Magneto. The Hulk secretly fears that his intellect is fading. Spider-Man overhears the X-Men planning to leave and join Magneto and whips the mutants good until Xavier wipes his memory. With their forces dwindled, Doom creates two new allies for the coming war. Thor revives the Enchantress and the two head off to chat. When dawn breaks, the Hulk drops the ball on sentry duty and the heroes are unprepared for an assault on their base by the villains who quickly gain the upper hand.
Second print exists. On-sale date from Amazing Heroes #43, with newsstand on-sale date of 1984-03-27.
- The Crisis Within! - Zeck pencils and inks credits confirmed by Mike Zeck (27 November 2014).
- Crank Up the Power of Pro Thunder! - Appears on the inside front cover.
- - Appears after page 4 of the main story.
- Marvel Super Mart - Appears after page 5 of the main story.
- Classified Ads - Appears after page 5 of the main story.
- - Appears after page 7 of the main story.
- - Appears after page 8 of the main story.
- America's Favorite Comic Book Conventions - Appears after page 16 of the main story.
- - Appears after page 16 of the main story.
- - Appears after page 17 of the main story.
- - Promo ad for Kull the Conqueror; appears after page 17 of the main story.
- Iron Fist Pointing Sideways - Promo for the Power Man and Iron Fist series.
Appears after page 19 of the main story.
- Special 1984 Low Price Offer - Promo ad for discount on current Marvel titles.
- Masters of the Universe the Power of He-Man Video Game - Advertisement for He-Man video game; appears on the inside back cover.
- - Advertisement for Parker Brothers video games on Atari systems; appears on the back cover.
