Thanos is going to collect all the sos because he wants the Avengers. After making adjustments to the plan, the Avnegers and the Guardians of the Galaxy team up to defeat the mighty Mark Ruffalo.
Be sure to check out plenty more YTPs, including the first Infinity War Trailer - /playlist/PLl_z0Vk1fdzBQLh01hq9NW2tPLO3_eejR