六号关口After serving two years on a military outpost in the middle of an ocean – four soldiers are waiting for a new crew to replace them. When the long-awaited boat finally appears, it’s empty with no relief on board. When trying to find out what happened to the boat and the missing crew, they realize they’ve lost all communications with home. Cut off from the rest of the world and no one coming to get them, Baines, Sullivan, Cassidy and Hendryx must fight with suspicions about each other and find a new way to get home. If home still exists.