DC Comics Presents #2

Iylar attempts to alter pre-history by traveling to the end of time to access a rift back to the past. Superman and Flash pursue him, but Flash collides with Reverse-Flash, while Superman learns stopping Iylar preserves Krypton. Rescuing Flash, Superman repairs a time rift and leaves a hidden message. Trapped in the 30th century, he escapes with Superboy's help. Reuniting, the heroes follow Iylar, destroy his time cycle, and return to the present. Superman disables the alien threat, and the two heroes part victorious.