The Cavern

When a sinkhole in the Australian outback uncovers a remote cave system, paramedic Sam joins an expedition with hopes of staying safe at base camp. However, after an injury forces him to confront his fears and venture into the dark, he discovers that lurking dangers in the caves are far more deadly than expected. As a ferocious predator begins to target the group, they must fight to survive and find their way back to the surface.