A Marine patrol stops at Firebase Gloria at the start of the Tet Offensive during the Vietnam war. With the firebase attacked, the patrol remains to help defend it.

An experimental submarine with a very experienced crew, the "Siren II" is sent to find out what happened to the "Siren I" after it mysteriously disappeared in a submarine rift. Things go awry when they begin to find things that shouldn't be there...

A model causes an obsessed police photographer to lose his girlfriend and become a murder suspect.

Forrest Taft is an environmental agent who works for the Aegis Oil Company in Alaska. Aegis Oil's corrupt CEO is the kind of person who doesn't care whether or not oil spills into the ocean or onto the land—just as long as it's making money for him.