This issue has variants.
Story continued from the previous issue, and continues in the next issue.
Alien Holding Camp 6736 appears to be modeled on the first Legion Clubhouse (the upside-down rocket).
The members of the Justice League were all former Legion rejects pre-Crisis, having been rejected in Adventure Comics #301, 320, 323, 331, and Superboy #218. Miss Niwtyn's full name is Ethel Lyn Niwtyn, also known as another reject, Eye-Ful Ethel.
The Superman hologram on page 16 is an homage to the cover of Superman (DC, 1939 series) #1.
Dan teases a few questions that fans might have, with no answers. Ads for Action Comics #860, Countdown #23, Countdown Presents: The Search for Ray Palmer: Gotham By Gaslight #1, and Justice League of America #15. Appears on page 34 in this issue.
House ads for: World of Warcraft, Heroes hardcover, Teen Titans Go (2/3 page), and Shazam! The Monster Society of Evil hardcover. Appear in various places in this issue.
Total of 6 one-page, 1 one-third page, and 1 two-page ads for: Viva Pinata Party Animals (video game, Krome Studios), Avatar The Last Airbender The Burning Earth (video game, THQ), Rescuing Recess (volunteer opportunity, Cartoon Network), Ratatouille (video game, THQ), Buzz Junior Jungle Party (video game, Sony Computer Entertainment, 2 pages), Ben 10 Race Against Time (TV, Cartoon Network, 1/3 page), Chibi-Robo Park Patrol (video game, Nintendo), and Nights Journey of Dreams (video game, Sega). Appear in various places in this issue.