Scientist Dr. Reid’s lifelong dream seems to be within reach. The team he leads is approaching the center of the outer space cosmic storm in a spacecraft, where he will obtain a large amount of data, crack the secret of human genetic inheritance, and use it to benefit the whole Humanity.
Due to the government’s unlimited budget cuts, the flight was almost in vain, until Reid accepted conditional support from his university-era rival, Dr. Victor von Doum, a billionaire. Only then was able to complete the flight plan with his companions. However, during the flight, Reid found that he had miscalculated the speed of the cosmic storm. The spacecraft was swallowed by violent cosmic rays within an instant. These strong radiations instantly changed the DNA of the team members and also changed their lives.
After the team members returned to Earth, they gradually discovered the magical changes in their bodies: Reid's body can be changed into any shape he can imagine, so he was named Mr. Fantastic; his girlfriend Sue Storm gained the ability to be invisible and was able to control and activate a powerful force field, so he was called the Invisible Girl; Sue’s younger brother Johnny Storm gained the ability to control fire and could use fire. Wraps the body and launches an attack, so it is called Human Torch; Ben Grim's muscles all swell into orange-red rocks with great strength. His new name is The Thing.
In this way, four people with superhuman abilities combined into a superhero team "Fantastic Four", using their abilities to help those in trouble, and at the same time to prevent Dr. Doom’s evil plan, but different from other unknown heroes While fighting against increasingly dangerous conspiracies that threaten world peace, they have also become the most famous superheroes in the world, which brings unimaginable pressure to this superhuman family.