- Script
- Carla Conway; Gerry Conway
- Pencils
- Keith Giffen
- Inks
- John Celardo
- Colors
- Jerry Serpe
- Letters
- Ben Oda
- Genre
- adventure
- Characters
- Challengers of the Unknown [Ace Morgan; Rocky Davis; Prof Haley; Red Ryan; June Robbins]; Swamp Thing; Deadman; Lucas Lawspeaker; The Sunset Lords; The Persuader
- Synopsis
- In 12,000,000 AD, Ace, Rocky, and June make a prison-break, while Swamp Thing holds back mutants. Back in 1978, Prof is saved from a monster when Red returns, cranks up the lab temperature, and cooks the monster. In the future, the Challs reach the breeder labs and blow them up.
- Reprints
Includes a cutaway map of Challenger Mountain.
- Script
- ?
- Pencils
- Curt Swan
- Inks
- Vince Colletta
- Colors
- ?
- Letters
- ?
- Genre
- superhero
- Characters
- Aquaman; Aqualad
On the page immediately following the 6th page of the previous story sequence.
- Script
- Jack C. Harris
- Letters
- typeset
- Job Number
- L-936
New letters page name provided by fan Andy Proctor. Jack C. Harris announces that the title is cancelled.