Comic Title: Showcase Presents:Challengers of the Unknown Vol. 2 TPB
Publisher: DC
Cover Date: 2008
On Sale Date: April 30, 2008 Direct Market Date April 23, 2008
Source: Previews, #232

Direct Market Date April 30, 2008
Source: ComicList, New Comic Book Releases List for Wednesday, April 30, 2008

Cover Price: $16.99
Page Count: 528
Editor: Peter Hamboussi

See Also: The Guide to Graphic Novels and Collected Editions

Title: "Cosmo Turns Traitor"
Pages: 15

Feature(s):
Challengers of the Unknown (of Earth-1)

Artist: Bob Brown

Reprinted From:
Challengers of the Unknown #32 (1963)

Feature Character(s)

• Challengers of the Unknown (last appearance in Challengers of the Unknown #32; next appearance in Challengers of the Unknown #33)
• Ace Morgan (last appearance in Challengers of the Unknown #32; next appearance in Challengers of the Unknown #33)
• Rocky Davis (last appearance in Challengers of the Unknown #32; next appearance in Challengers of the Unknown #33)
• Red Ryan (last appearance in Challengers of the Unknown #32; next appearance in Challengers of the Unknown #33)
• Prof. Haley (last appearance in Challengers of the Unknown #32; next appearance in Challengers of the Unknown #33)

Supporting Character(s)

• Cosmo (last appearance in Challengers of the Unknown #25; no further appearances)

Villain(s)

• Mastermind and two henchmen (no further appearances)

Other Character(s)

• D’Jann (Cosmo’s original owner; no further appearances)

Comments:
Cosmo’s real name of J’Suna is revealed in this story.

Synopsis:
Cosmo’s original owner D’Jann comes to Earth seeking his lost pet. A group of criminals led by Mastermind trick D’Jann into helping them capture the Challengers. Once captured the Challs are transformed into fire, wind, cloud, and two-dimensional men. They escape, but Cosmo is injured. D’Jann heals his pet and learns that Mastermind has deceived him. He restores the Challs to their natural forms, helps them capture Mastermind, then returns to his homeworld, leaving Cosmo on Earth with the Challs.