It was a battle to the death. Thanos and the other villains were so close to getting all the infinity Stones and wiping out half of all life on earth but Tony Stark/Iron Man had a plan. He and his friends and allies escaped using the space stone with the other infinity stones to a world where 80% of the population have super powers.

Peter Parker died as a result of the Infinity Gauntlet on Titan. He awakens in a new world of heroes and villains in a foreign country... How will Peter cope and adapt in this new environment as he makes new friends and enemies... (MCUxMHA crossover, Pairing Undecided).

stuck in a new world Steven will do what he always does, protect the world he loves.

After an encounter with one of the Infinity Stones, Spider-Man finds himself placed in a new world of superheroes. Mysteriously, he becomes enrolled in U.A, a high school created for teaching upcoming heroes. When he discovers the Infinity Stones have become lost In this world, somehow still retaining their power, he must find them before his new friends get caught in the crossfire