This issue is a variant of Action Comics (DC, 1938 series) #845 [Direct].
Second printing cover, colored with red shading, announced on 2007-02-22, and shipped on 2007-03-14.
Story continued from the previous issue and continues in the next issue. The name Christopher is probably an homage to Christopher Reeve, who starred as Superman in the "Superman II" movie, which much of this story's elements are derived from. The Kryptonese text on the ship on pages 20 and 21 is translated as: "OPEN".
Dan and his editorial staff discuss what they are thankful for this year. Ads for Action Comics #846, Connor Hawke: Dragon's Blood #1, Guy Gardner: Collateral Damage #1, and Hawkgirl #58. Appears on page 34 in this issue.
Total of 5 one-page and 3 two-page ads for: Superman Returns (DVD, Warner Bros.), Final Fantasy V Advance (video game, Square Enix, 2 pages), Superman The Ultimate Collector's Edition/Superman II: The Richard Donner Cut/The Christopher Reeve Superman Collection (DVD, Warner Bros., 2 pages), Children of Mana/Magical Starsign (video game, Nintendo, 2 pages), Magic the Gathering (card game, Wizards of the Coast), Dragonball Z Budokai Tenkaichi 2 (video game, Atari), Destroy All Humans 2 (video game, THQ), and Killzone Liberation (video game, Sony Computer Entertainment Europe). Appear in various places in this issue.