While on a GPS treasure hunt in the Palatinate forest (Pfaelzerwald), four teenagers come across an abandoned US military radio tower station that once was part of a secret military program with horrible side effects.

While on a GPS treasure hunt in the Palatinate forest four teenagers come across an old US military radio tower station. Back in the days of the Cold War it was part of a secret military program that produced horrific side effects, but has long since abandoned. Until now, when the station is mysteriously powered up again.—MovieBrats