I watched Averages Infinity War and this is the biggest marvel movie ever made. Almost Every Marvel hero was in it. Hawkeye and Ant man was absent maybe they will join in Second part of Infinity War.
Movie starts where thor Ragnarok ended and Thanos defeats thor, and hulk and kills Loki and Heimdall. And in his final time heimdall teleports hulk to earth where he warns Doctor strange and tony.
Thanos sends his childs to earth to collect time gem and mind gem. Then Iron man, hulk, spiderman and Doctor strange comforts Ebony Maw and giant dwarf after they captures Doctor strange team (Without Hulk) goes into the ship to save Strange where they kills Ebony Maw and decides to attack On Titan where thanos live.
Meanwhile Guardians found thor and thor requests to them to take them to a dwarf who can forge a weapon strong enough to defeat thanos. Then Thor, rocket amd groot go to the dwarf and remained guardians to save the Collector and Reality stone but they were late and thanos captures Gamora because she knows where the soul stone is.
Meanwhile Corvus Glaiveand Proxima Midnight attcks Vision and Wanda for mind stone but captain American makes the save. Later All Averages come together to save the world and goes to wakanda in hope to destroy mind stone and save vision.
Wakands prepares for the battle and Thanos's army arrives at wakanda Avengers had a hard time defeating a large army and reaming three members of black order but things changes when groot, rocket and thor arrives with his new Hemmerexe type weapon '' StormBreaker'' and turns tides of war completely towards Avengers.
Later Guardians also goes to Titan to save gamora and strange, spiderman and tony also arrives but thanos was out to get soul gem and for that he tortures Nebula to get the address of gem from Gamora then they go to vormir where they found Red Skull and according to him thanos has to kill someone dear to get the soul stone so he kills Gamora and gets tge soul stone after that Thanos arrives at Titan and defeats Avengers thanks to Star Lord. And Thanos almost kills Iron Man but Strange trades Time stone for Tony's life.
Then Thanos Having 5 Gems goes to earth and kills vision to get mind stone and with all of the gems he defeats everyone. But Thor's new weapon was very strong even for thanos he kills thanos but thanos laughs and says that he should have hit him in the head then Thanos uses Power of Infinity Stones and Wipes out half of the Universe.
With This Final blow thanos kills almost half of the heroes in the world including Black Panther, Doctor Strange, White Wolf, Spiderman, Falcon and whole guardians them expect rocket.