Secret Invasion #1

Tony Stark briefs Reed Richards and Henry Pym about the Skrull threat, while a Skrull ship crash-lands in the Savage Land. Simultaneously, the Secret Avengers clash with the Mighty Avengers, escalating tensions. Jarvis infects Avengers Tower with an alien virus, and Skrull impersonations endanger critical sites like the Baxter Building and Thunderbolts Mountain. The climax reveals Henry Pym's betrayal, as he unveils his Skrull identity, escalating the turmoil.

Key details
- Beginning of a notable story arc
- MCU series loosely based up on this comic