According to the US Federal law, if a death row inmate gets the electric chair and survives three jolts of 15,000 volts each for 15 seconds, he gets to go free. Sam Seed (Sanderson) has been the latest death row inmate to get the chair. The execution will be supervised by Warden Wright (Moeller). After two attempts at electrocution and Seed is still alive, Wright forces the doctor to pronounce the breathing Seed dead. He is bound and buried alive. After biting and clawing his way to the surface, Seed, the blood soaked, enraged madman, is now bent on vengeance.