Earth's ocean floor, 2084. With two superpowers poised on the brink of a devastating photonic war, a missile base comes under attack from the reptilian Sea Devils and Silurians, intent on eradicating the upstart human race and reclaiming the planet..... (more).

Christopher Farries, Nigel Humphreys, Norman Comer, Tara Ward, Tom Adams, Vincent Brimble