When acquaintances miraculously survive a plane crash unscathed, they conclude that since they are "living on borrowed time" they should band together for hazardous adventures. The four—pilot Kyle "Ace" Morgan, daredevil Matthew "Red" Ryan, strong and slow-witted Leslie "Rocky" Davis, and scientist Walter Mark "Prof" Haley—became the Challengers of the Unknown.
As the team's challenges become more occult, Red's brother Tino is blinded. Red donates an eye to his brother and dons an eye patch. Eventually Red receives an eye transplant. Prof becomes possessed by an evil spirit and is shot by a villain. While he recovers, Corinna Stark, a mysterious blonde with mystical knowledge, invites herself onto the team. The Challengers fight occult alien-monsters in backwoods villages and dark dreams, and Rocky and Red fight for Corinna's affection.
Challengerville
The Challs are later semi-retired, their mountain a theme park, and their adventures disregarded as cooked-up articles in a tabloid, The Tattletale. The nearby town has renamed itself Challengerville, managing to thrive on the team's name. A cosmic entity, which prides itself as "the personification of all evil", influences the entity Multi-Man to blow up the mountain. The town is destroyed. Hundreds die, including, seemingly, Prof and June. [18] The surviving Challengers are placed on trial, but eventually freed with the testimony of Superman. They are, however, ordered to disband. [19]
A tabloid reporter, Moffet, becomes involved with the group after several unexplained incidents. Moffet begins to piece together many seemingly unrelated massacres. Red became a violent, vigilante mercenary. Ace becomes an addled mystic, losing new-found friends due to inattention and incompetence. Rocky becomes lost in a life of luxury and ends up in an insane asylum.
Eventually the three reunite, and with Moffet's aid, find a strange portal near what was once Challengerville. They discover Prof and June, pregnant, "alive" in a strange "phantom zone". The dark demon confronts them and the final battle comes down to Moffet and a neutron bomb. The decision to attack is literally taken out of his hands by Multi-Man, who sacrifices himself to destroy the demon. [20]
"The New Challengers of the Unknown", including ghostly Prof and June, were poised to take on menaces in the dark corners of the world. [20]
Later, four new Challengers pursue X-Files -like horrors. They are Clay Brody, NASCAR driver; Brenda Ruskin, physicist; Kenn Kawa, radical games designer; and Marlon Corbet, commercial pilot, who also miraculously survived a plane crash. They stopped sacrificial wackos, drug-juiced zombies, vengeful ghosts, Amazon cults, Lovecraftian monsters, mass suicides, humming buildings, and other oddities. They were advised by Rocky Davis, older and grayer and alone. It was eventually revealed that the original Challengers were dematerialized by a mad scientist's ray-weapon. The same ray caused both plane crashes, as well as others. Soon the original Challs reappeared, helped the young Challs defeat the madman, then walked back into oblivion (minus a wounded Rocky) to shut down a runaway Tesla field. The young Challengers vowed to fight on.
Superboy discovers the missing Challengers—Ace, Red, Prof, and June—in Hypertime. The team was waging guerrilla war against Black Zero (a Superboy variant). With Black Zero defeated, the team returns to Earth, but loses Red along the way. Reunited with Rocky in Metropolis, hosted by Rip Hunter, the original Challengers vow to explore Hypertime, "the greatest unknown", to find Red.
Two Challengers partake in Infinite Crisis . Rocky Davis and Prof Haley help stem the escape of prisoners from Blackgate Prison. [21] Rocky fights in the Battle of Metropolis . He is one of dozens of heroes fighting the opposing army of the Secret Society of Super Villains . The Society is ultimately defeated. [22]
Later, on a world without superheroes, a blogger, a hip hop artist, an eco-terrorist, and two others discovers they had been genetically enhanced and chip-programmed to be soldier-pawns by the Hegemony, a cabal of billionaires who secretly run that world. Made slaves on a Moon base, three Challengers blow up the base, escape to Earth, and declare war on the Hegemony until (like the obliquely mentioned earlier Challengers) their "borrowed time" runs out.
in DC All In , the Challengers of the Unknown join the Justice League as maintenance workers on the Watchtower. [23]
