Challengers of the Unknown [Red Ryan; Ace Morgan; Rocky Davis; Prof Haley]; five unnamed mutated scientists
Synopsis
The Challs guard a recently unearthed sarcophagus but a harpy creature breaks in and steals it. Arriving at Skull Island the heroes find an underground lab of extinct creatures. They fight back but are gassed. They awaken in new uniforms with hourglass emblems facing a council of scientists mutated by radiation. The Challs are asked to mutate but refuse; in order to free his friends Prof subjects himself to the transformation. His mind is affected and he attacks the Challs. When the transformer blows up Prof reverts to normal. The explosion destroys the island as the team escape in their jet.
Hawkman [Katar Hol]; Hawkgirl [Shayera Hol]; C.A.W. [Criminal Alliance of the World] (introduction); Crocodile-Men
Synopsis
When Shiera is teleported out of the museum, Hawkman traces the radiation to Egypt and the secret lair of the Criminal Alliance of the World. Hawkman manages to rescue Hawkgirl, but CAW escapes.