Please note, there are two versions of this script. The newest has replaced the hero with a heroine and has become more female-centric. Both work from completely two different angles, ie, it's one thing to do Eastwood as a man, but quite another when he's done by a woman. Plus, the survivors are now all women. Update: Thanks to CBS News 60 Minutes, UFOs are hot! https://cbsn.ws/33PgjH8
Two couples join a famous hiking guide for a weekend of climbing and camping in the mountains. Twenty-somethings Paul and Rosey can't keep their hands off each other. Thirty-somethings Shelly and Henderson can barely tolerate the younger couple. Although their guide may have made the cover of People magazine as America's last mountain man and looks like Grizzly Adams, he never hikes without his buddy Jack Daniels. His penchant for constantly reminding everyone to "keep close" and his insistence that the lakes are never in the same place each season after the first snowmelt doesn't instill the kind of confidence it should in his hikers.
Until the first death. Paul and Rosey slip away from the campsite near the top of the mountain for some quick sex only to bump up against what can best be described as a half-human, half-dinosaur nine-foot T-Rex. The monster looks like what T-Rex might have become if it had had the chance to evolve. Paul is decapitated and Rosey turns up missing. Jackson, feeling his drink and his paranoia, orders Shelly and Henderson to run for it. Henderson doesn't make it out of the campsite. Slip-sliding down the moonlit, forested slope, Jackson manages to wound or kill a few of the dinomen before he and Shelly temporarily pause to hide and catch their breath. Jackson decides to go back to search for Rosey. Shelly can't believe it until it is revealed that Rosey is his daughter. Jackson tells Shelly to continue on down the mountain as he goes back to search for his daughter. Shelly discovers a lake has appeared out of nowhere and is blocking her path. That's when she is captured. Meanwhile, Jackson has followed a dinoman into a cave. Within moments of entering the cave, he's captured and thrown into a hole in the wall inside the cave chamber. There he discovers Rosey is still alive. Shelly joins them.
Within moments they are escorted by dinomen to an amazing elevator that whisks them upward inside the hollowed-out mountain. There they meet what looks like a united universe of space aliens who have made Earth an outpost for science research. Alien, the leader, promises their safety and introduces Amelia Earhart to them. No one can believe she's still youthful after all these years. She escorts them to temporary quarters where they discover they can have anything they can imagine. When Amelia warns them not to trust anybody and later disappears, the captives, despite a night of heavy drinking, vow to escape. That opportunity comes when Alien pays a visit. Overpowered by Jackson, Alien is taken hostage but the group accidentally ends up inside a flying saucer. There the earthlings are "betrayed" by a dolphin. Recaptured, the humans are returned to Level One in the hollow mountain and await their fate with the dinomen.
Jackson convinces the women to get pro-active in rescuing themselves. Too bad Alien has the cave miked and picked up everything they said. As they make their escape, Alien catches Shelly and has one of the dinomen eat her. Jackson finds his rifle and, as he and Rosey run down the moonlit mountain through the forests, fires back at the bounding, hard-charging dinomen. A flying saucer is also tracking them with a spotlight. When they reach another unexpected lake, Jackson throws his daughter into the lake and tells her to swim to the other side while he makes a last stand like Davey Crockett at the Alamo. Rosey, in the middle of the lake with the harsh white light of the saucer spot light nearly blinding her, looks back and sees her dad devoured by a dinoman. She turns and swims for her life. Caught in a raging current, Rosey tumbles over a waterfall. Lying on a road, with water running all around her, car headlights cause her to look up. The SUV stops short. She smiles. It looks like she has been saved. She lets her head fall back to the pavement listening to the footsteps of the driver near. When she looks up again, she screams. The driver is a dinoman.