A group of volatile criminals, led by Tony Stone and the sadistic John Lynch, carry out a robbery with assistance from someone inside. A violent confrontation with the LAPD follows, resulting in the arrest of the gang. After a short prison sentence, they escape from a prison transport vehicle with the help of Tony's brother Jesse, who is seriously injured. He requires immediate medical attention, so they abandon a hospital and go into hiding. They seize a large house, taking hostages. John Morgan, an ordinary citizen, is drawn into the situation and tasked with finding a doctor for Jesse.