Prominent explorer John Palmer is contacted to lead an expedition in a series of disused mines in Switzerland. Halfway through the trip, the team runs into a host of deadly black beetles, but when John wants to turn back his benefactor refuses and threatens the life of his family if he declines to continue. Horror, starring Christoper Atkins and Colm Meaney.

An extreme adventure tour group headed by deep caving expert John Palmer descends into a 2000 Ft abandoned salt mine , that was mysteriously closed down years ago after an unexplained disaster trapped all of the miners . They prepare for rock slides , blackouts , cave-ins - whatever might threaten their journey and commence their descent into the depths.