Avengers: Ultron Forever #1

Against a backdrop of Ultron's looming mechanical wings and a pile of skulls, the Hulk, Black Widow, Captain America, Thor, the Vision, Iron Man, and a caped figure stand united in a defiant tableau — the weight of what they're facing made unmistakably clear. Al Ewing and Alan Davis (with inks by Mark Farmer and colors by Rachelle Rosenberg) kick off this three-part "Ultron Forever" saga with a roster that spans Marvel's heaviest hitters. It's a 2015 Marvel event that promises exactly the scale its cover delivers.