When an accident leaves a group of researchers trapped beneath the earth's crust, it's up to a drill team, led by Joseph Harnet, to rescue them. But once underground, the team discovers a mysterious -- and horrifying -- subterranean universe. Dedee Pfeiffer, Greg Evigan, Vanessa Evigan, Jennifer Dorogi, Sara Tomko, Caroline Attwood, Leah Grimsson Added on Amazon Prime 2023-04-16. Youtube Trailer