Marvel Studios' Thunderbolts* introduces the Sentry, an unstable superhero who will make his return in Avengers: Doomsday.

Check out a preview of One World Under Doom #4, where Doctor Doom faces off against Dormammu in a battle for Earth's fate.

Kang the Conqueror's unceremonious defeat may be anticlimactic, but it suits the multiversal supervillain quite well, all ...