Shock Waves come to us in 1975, but did not arise until 1977 to movie audiences. It is a film about Nazi zombies starring horror legends John Carradine and Peter Cushing. On a trip to tropical islands, the boat hits a rock sending passengers to a mysterious island. There they are told to leave or face the consequences which the latter is always ignored. The shipwrecked travelers wander the island aimlessly being "too stupid to understand." The horrors await them when a group of Nazi zombies arise from the see and attack them. Yes, Nazi zombies are what attacks them. It sounds ludicrously lame, but the writing and directing turns that around and delivers a strong thriller. The Nazi zombies are very interesting as the walk around with no life, but do not let that fool you. These zombies are clever and very violent. Built to adapt underwater, they may lacks guns, but their stealth and environment are enough. You see the zombies drown their victims. Soon, they go from looking silly to pretty intimidating. What is the story behind them? Well, the old reclusive man has the answer. He is an SS commander of the Death Korps, a group that used to be human. There were several types that were made to fight the allies in World War II. They did not need any human needs and lacked emotions. The zombies were nearly the perfect weapon until they became unrestrained and dangerous to everyone. Shock Waves is an effective thriller with two great horror icons, Carradine and Cushing. The low budget film lacks gore that you usually see in zombie films and explosions and guns since the zombies were from World War II. However, there is enough thrills to bring back the dead. OH and also, Brooke Adam is very hot here.