ARC face an underwater enemy

When a nuclear submarine discovers a strange and unexplained creature on their Sonar equipment, the ARC team are deployed to uncover the underwater monster mystery.

After the submarine crew bring the creature on board, Abby identifies it as an Eustreptospondylus which has come through an underwater anomaly. However, contrary to what the crew thought, it’s not dead – just stunned. It doesn’t take long before people are being killed, with the ARC team trapped in the sub, deep underwater.

Travelling back through the anomaly, the submarine is followed by a much larger underwater marine reptile which is attacking them. But back on dry land, Lester comes to blows with the Admiral, who’s not impressed with what’s happening. Lester assures him that the ARC team have everything under control, but it’s not long before the Admiral is taking matters into his own hands by ordering a nuclear missile to be deployed into the anomaly to prevent any of the creatures – or the submarine – returning.

Coming back through just in time, the team launch their own missile to destroy the anomaly, while also managing to avoid the nuclear missile aimed straight at them!