It centered on Joe, a German Shepherd in the military's K-9 corps, and his master, Sergeant Will Corey (played by Arch Whiting).
One day, during training, Joe was falsely accused of attacking his master, a crime for which the dog would be euthanised as punishment.
Joe then teamed with a hiker, Josh McCoy (played by Chad States), and continued to help others, all the while still on the run.
Joe helps a young Indian while he tries to prove his manhood and encounters a wild bear.
Joe leads a blind girl, who's gotten lost in the forest, to safety while in return she saves him from harm.
Joe and Josh find work on a farm where the farmer obsesses over a horse.