总揽：Scientists at a secret underground complex have found a way to go to another dimension. The 3D traveler was the first person to pass through the gate, but was soon attacked by something that interrupted communication with Earth. This terrifying thing uses the gate to return to the underground building complex. Most of the staff members have been evacuated, except for four heavily armed troops, as well as Dr. Caselli and Dr. Summerfield, who cannot tolerate each other...
