Marvel's Avengers: Untitled Prelude

A COSMIC CALAMITY!
From the dawn of the universe came six INFINITY STONES, each in control of an essential aspect of existence: space, reality, power, soul, mind and time. Now, THANOS strives to collect them all to further his mad plan of wiping out half the universe's population. Standing between him and his goal: the AVENGERS, the GUARDIANS OF THE GALAXY, SPIDER-MAN, and more! But with one Infinity Stone already in Thanos' possession, will even the combined might of the Marvel Universe be enough to stop him?  
Rated T+