Seasons & Episode
Volume 1 details the Justice League's second mission after leaving Smallville.
Volume 2 reveals the owner of the the car in Volume 1, and offers insight into the founding of Smallville.
Volume 3 details the team's third mission, a search for a mysterious vial.
Volume 4 details the Team's attempt to disable one of Lex Luthor's super soldiers.
Smallville Legends: Justice & Doom is an animated on-screen comic book that aired during the last six episodes of Season Six and was also an included feature in the Season 6 DVD and Blu-ray sets. It further explores the adventures of Green Arrow's Justice League team. In these, the Green Arrow, Cyborg, Aquaman, Impulse, and Watchtower all work together to take out the rest of Lex Luthor's Level 33.1 facilities. The volumes take place after the events of Justice and tie into several episode story lines, specifically Combat, Prototype, and Phantom.
