Aliens vs. Avengers #4

FINALE! THE SINISTER PLOT REVEALED! Earth's mightiest heroes abandoned their home planet to save humanity from the Xenomorph threat. Now, they've arrived on Mars - current refuge of the X-Men. But the twisted machinations of Mister Sinister might spell doom for them all… Don't miss the EPIC CONCLUSION of Hickman and Ribic's CROSSOVER MASTERPIECE! RATED PARENTAL ADVISORY.