A cursed survivor of killings at the Amityville House brings evil to a small island where bizarre genetic experiments are carried out on humans and animals.

Eastern Europe, 1944. The Allies successfully bomb a dam in France, wiping out a German installation, concealing secret codes valuable for Allied decoding. A rogue band of soldiers is sent to retrieve the codes from a hidden vault in the flooded towns ruins and bring them back to the Allied headquarters. Along the way they must fight off pockets of Nazi resistance and stay alive.

For years, the infamous Blackwood Forest was terrorized by the Camp Blood Killer. Now, the killer is back as a vengeful spirit seeking revenge from beyond the grave.