Clark Kent (Superman), Bruce Wayne (Batman), and Diana Prince (Wonder Woman) are starting a new school year at Justice Prep. This semester, everyone is focusing on their science projects: Principal James Gordon announced that the winner of the upcoming science fair gets an all-inclusive trip to the new S.T.A.R. Laboratories space facility. As the fair draws closer, the students receive a text message from a mysterious, untraceable number saying: "if you help me, I can help YOU win the science fair!" Just who is behind this mystery number, and what do they have to do with the science fair? It's up to Clark, Diana, and Bruce's Junior Detectives Club to find out!