After solving "Dr. Steel Eye of Destruction" in the first episode, the "Fantastic Four" have gradually adapted to their new identities, and the team members 'lives are enjoying themselves. Reed (Ioan Gruffudd) and Susan (Jessica Alba) finally walk into the church, but just halfway through the wedding, a gust of wind suddenly blows and a silver lightning flash across the sky. Reid hurriedly called "Thunderfire"(Chris Evans) to chase after him and see what happened."Thunderfire" was no match for the opponent at all. Reid's worry became reality: a new enemy had emerged-"Silver Shadow"(Doug Jones)! Disasters began to spread across the world. Through investigation, Susan discovered that the Silver Surfer was only forced by the "Planet Devourer" Galactus to help him find a planet in the universe for him to devour. This time, the target was Earth! The "Fantastic Four" are on the move again. Can we help the poor "Silver Shadow" this time and successfully save the earth?