Nick Fury is back! As the war with the Skrulls reaches a fever pitch in Secret Invasion, "Mighty Avengers" answers many of the event's most compelling questions: where is Nick Fury, and what has he been up to; who are the mysterious 'Caterpillars'; what's keeping the Sentry from taking out the shape-changing aliens single-handedly; and, Hank Pym's a Skrull...how the heck did that happen! Next, she led the world's most lethal band of assassins - because she was the world's most lethal assassin! The revelation that Elektra was a Skrull impostor sent shockwaves through the Marvel Universe, and the mistrust that followed tore at the fabric of the Avengers' unity. Now, with the Secret Invasion of the Skrulls in full force, the secrets of her abduction are laid bare! This title collects "Mighty Avengers" numbered 12-20.