With just a little more than a month to go, Marvel has delivered the final trailer for Avengers: Infinity War, and it looks like we're in for a heck of a ride.

Every film in the Marvel Cinematic Universe has been building towards this film. For those brave souls that would like to relive all those moments, don't forget AMC is running a 31-hour marathon to get you ready for this newest entry.

If you feel comfortable going into this one without an endurance test, just remember that the Infinity Stones are spread across the universe, and Thanos wants to unite all of them. What happens when he does? Well… you'll just have to see the movie to find out, but comic readers already know, and it isn't pretty.

Avengers: Infinity War promises to be a box office smash, and there is something satisfying about the idea this begins the ending of the first story arc of the MCU. The film will hit theaters on April 27.