Star Boy travels to the past in pursuit of the Fatal Five, but a rough landing destroys the medicine he needs to stabilize his mind. When it is realized that the villains are after GL Jessica Cruz, the Justice League deduce from Star Boy's erratic ravings that he can help. A telepathic link from Miss Martian reveals Thomas Kallor's origins, and several unidentified Legionnaires are shown in a hall of statues, including possibly Arm Fall-Off Boy (Splitter). In the end, despite his mental challenges, Star Boy sacrifices his life to saye the day. As the Justice League members commemorate his heroism, they are joined by the Legion who have come from the future to honor their fallen comrade