Thanos already has the Reality Stone. He tricks the Guardians with fake scenarios (Gamora stabs a fake Thanos, etc.). He kidnaps the real Gamora — she knows the location of the .
Perfectly balanced, as all things should be. vengadores: infinity war warez
Thanos arrives on Titan (not Earth — Titan is his home planet). Iron Man, Spider-Man, Strange, Star-Lord, Drax, Mantis, and Nebula jump him. They almost win — Mantis puts Thanos to sleep. But Quill (Star-Lord) learns Thanos killed Gamora. Quill punches Thanos, breaking the hold. Thanos wakes up, impales Tony (nearly kills him). Strange gives up the Time Stone to save Tony. Thanos already has the Reality Stone
Hulk gets Bifrost’d to Earth (Doctor Strange’s Sanctum) to warn Wong and Strange. Hulk refuses to come out of Banner's "shell" for the rest of the movie (bug report: Hulk.exe has stopped working). Perfectly balanced, as all things should be