The movie starts in 1990, showing Howard Stark and Mitchell Carson sending five scientists on a mission across the Quantum Realm to collect their energy, but the mission fails and the pilots are stuck there for 35 years, but for them they only spend 35 hours there. . when they come back to reality, knowing the world is fully evolved and still healing from the Blib, they part ways and go on with their lives, but Reed, Johnny, and Sue are forced to return when Ben disappears, and Reed discovers through testing that his time there gave them special abilities, meanwhile we are introduced to Harvey Rupert Elder, an American nuclear engineer and explorer, One day, while following the group of explorers from the Baxter Building, he came across Monster Island, saw that his theories finally had been justified. However, he suffered highly permanent damage to his eyes when he looked directly into a reflective deposit of diamonds. Elder calls himself the Mole Man he eventually became the ruler of the branch of Subterraneans now known as the Moloids, now with his powers The Mole Man carries out attacks on the surface world destroying nuclear plants in the Eastern Bloc, Australia, South America and Africa French Equatorial, forcing Reed, Sue, Johnny and Ben now with their powers together to prevent the Molen Man from starting a nuclear war.
