A Step Back

Katie Cinch, wife of Daryl Cinch is worried because Daryl didn't come home after a one-day hunting trip, in the Chiricahua Mountains of southeast Arizona.
Daryl, a modern day cowboy, rides his horse into rough country and throuch a time window that thrusts him back into the past, 20,000 years ago. The strange and vicious animals he meets there try their best to kill and eat him.