Caitlyn Richards (Selena Gomez) is Reed Richards (Miles Teller) twin sister. She, Reed, and Ben (Jamie Bell) have been best friends since they were kids. Reed, Ben, and Caitlyn then go to a science fair and meets Susan (Kate Mara), Franklin (Reg E. Cathey), and Kelly Storm (Scarlett Johansson). The three of them agree to help with Franklin's project and they meet Johnny Storm (Michael B. Jordan) and Victor Domashev (Toby Kebbell) a long the way. What happens when Caitlyn falls for a certain Victor Domashev and Ben's not happy and they gain unusual powers . Based off of Fantastic Four 2015.