paranormal investigators met the original Challengers and even had Rocky agree to advise them. One more revamp was done by Howard Chaykin in a six-issue miniseries (vol. 4, 2004–2005). This series had another new group of characters and was entirely unrelated to the previous two incarnations. Fictional character biographies 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. Soon famous, the Challengers accept many "unknown challenges" from The Pentagon, mad scientists, and people with a problem. Over time the "Challs" establish the hollowed-out Challengers Mountain as headquarters. Later they adopt an hourglass logo to symbolize time running out. They encounter genies, common and sophisticated thieves, rocs, aliens and robots good and bad. Their adventures later veer toward superheroics, and take in everything from occult menaces to Bermuda Triangle mysteries. The Challengers travel through space, time, and other dimensions. They encounter the likes of the Doom Patrol, Deadman, Swamp Thing, Jonny Double, and the Sea Devils, with whom they fight the criminal group Scorpio. June Robbins, a computer genius and archaeologist, joined the Challengers for many adventures as an "honorary" or "girl" Challenger. June first officially joins the team after the rogue robot 'Ultivac' seemingly kills one of the original Challengers. However that man returns thanks to heroic efforts of modern medical science. When Red is killed, a teen rock star/engineering genius immediately wages a vendetta against the three-man team. "Tino Mannaray" turns out to be Martin Ryan, Red's kid brother, who blames the team for his death. Red eventually returns; though blown up, he had been dosed with shape-changing Liquid Light and rendered amnesiac, but still nearly conquered the Pacific as a Tiki god. 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,