Blood Horse is an action-packed piece of science fiction that follows the mutation of a horse called Sammy who was given an injection of experimental DNA serum to heal a life changing injury. The treatment was an amazing success and Sammy was soon back on his feet but unknown to his owners the treatment turned on the killer instinct in him, gradually turning him into a 2000lb killing machine. We watch the people around him cope with their emotional turmoil and physical peril as their treasured show jumper develops aggressive, carnivorous traits that ultimately threaten their lives.