Two American girls travel to Montenegro on vacation to visit their old friend.
After a few days of fun and joy they decide to go to Mamula, the abandoned military fortress on a remote island. During their exploration of the fortress they discover that someone else is there--a strange homicidal soldier who is protecting the island and its secrets.
There is a darkness hidden beneath the island and the terror has just begun.
This is a Region 4 disc, the local region for Australia.