Operation Sierra-75

Torn from the universe by an insatiable cosmic vortex, Earth is trappedin the grotesque parody of reality called the Maelstrom -- along withthousands of other planets, millions of species, billions of warringcreatures... all swirling toward ultimate destruction.

Sent to find the survivors of a crash landing on an unexplored planet, acompany of Union Marines and medics are trapped on a hellish world ofenigmatic ruins, where they find themselves hunted by an unknown enemy.But when space and time begin to warp, weapons and equipment vanish, andstrange, murderous creatures haunt the Marines' every move, a simplerescue mission becomes a desperate death march....