Just after failure of the Plutonian Experiment, the UAC hangared their "gateway" programs. Many of the Gateways were kept under lock and key. However, a wealthy UAC corporate saw personal benefit and secretly took a Gateway to a remote planet where he had built a large complex complete with a lab and quarantine area to test the specimens. Unfortunately, as before, things got out of hand and the evil escaped, killing and torturing the scientists. The UAC soon got word of the missing artifact and despatched military forces to control the situation. All the soldiers sent were killed, although they did achieve one thing. Just before they were all annihilated, one lone soldier sent back information that one of the scientist had triggered the Gateway safety mechanism: that is, if a life form approached the Gateway it would automatically shut for ever. You are the UAC's last hope. Your mission: Shut the Gatway at all costs and destroy the evil that has run rampant throughout the complex.