A young man named Jason Fleming is exploring the caverns of rural Washington's Olympic Mountains with his girlfriend, Claire. When Claire is kidnapped by terrorists who think she's a spy, Jason follows them to their secret underground facility. Upon further investigation, he learns that the terrorists intend to incite a second Civil War in the United States. Jason must find a way to rescue Claire and find a way out of the complex, not knowing that the first shots of this new civil war have already been fired.