Avengers: Infinity War":
The film begins with Thanos, a powerful warlord, seeking the Infinity Stones—gems that hold immense power. Thanos aims to collect all six stones to execute his plan of wiping out half of all life in the universe, believing it will bring balance and prevent overpopulation.
The Avengers, fractured after the events of "Captain America: Civil War," are alerted to Thanos's threat. They split into groups across various locations to stop him. As Thanos and his minions pursue the Stones, the Avengers and other heroes—like Doctor Strange, Spider-Man, and the Guardians of the Galaxy—converge to defend against his forces.
Throughout the movie, intense battles unfold on Earth and in space. Thanos progressively gathers the stones, causing devastating consequences. He acquires the Soul Stone by sacrificing his adoptive daughter, Gamora, revealing the depth of his determination.
In a climactic showdown on the planet Titan, Iron Man, Spider-Man, Doctor Strange, and others confront Thanos. Despite a valiant effort, Thanos ultimately secures all the Infinity Stones, completing his gauntlet and gaining unimaginable power.
In a shocking and emotional moment, Thanos succeeds in his goal. With a snap of his fingers, he erases half of all living beings from existence, including some of the beloved heroes. The film ends with the surviving Avengers, devastated by their loss, left to contemplate the staggering defeat and the uncertain future.
"Avengers: Infinity War" sets the stage for its sequel, "Avengers: Endgame," where the remaining heroes must grapple with the aftermath and devise a plan to undo Thanos's catastrophic actions.