Directed by Ciro Ippolito in 1980 (not found on Spout!)
A group of semi-professional spelunkers explore their latest discovery, a massive cave filled with secrets… more than they counted on! Meanwhile, the world is stunned by news of a ship returning from a seemingly successful mission in space that splashed down with no sign of the crew! They didn’t make it home, but something else has arrived in their place! Now, trapped in an underground labyrinth with a malicious presence they don’t understand, that group of would-be adventurers must find a way to escape before they become the prey of the creatures pursuing them! And if they make it out, what will they find the world has become? Tremendously underrated movie that features a very unique atmosphere as well as a surprising amount of gory violence!