Episode Title:Only a Dream Part 2.Episode Description:Small time crook John Dee volunteers for an experimental treatment while in prison. While the authorities are distracted by a mass prison break (led by Volcana, Firefly, Solomon Grundy, Copperhead, and Luminus) John Dee overdoses to become the dream-controlling Doctor Destiny. Destiny takes telepathic control of most of the team in their sleep, leaving Batman and J'onn to save the others. As the League members become trapped in their dreams and unable to wake up, J'onn tries to force them awake, while Batman goes to confront Dr. Destiny.