Pretty good modern B movie. Slightly above average because the acting and the story is actually decent. As is the typical casewith these movies, the ending is hanging/disappointing, but not overly so. I've seen much worse.
Dirty oversimplified and opinionated plot summary
(spoilers after this point).
In a water world type of earth, two warring continents exist between a midway point where the sentinel is stationed. An oil-rig type of military platform. A skeleton crew of 4 expects overdue relief. A derelict ship washes up empty. The captain does not wish it investigated, thereafter everyone's behavior starts to get weird and things get complicated. Turns out there is a 20mt atomic bomb in the sentinel which will destroy both continents if activated, so it's like a deterrent for total war. Both sides apparently want it. In the end, 2 of them die to stupid internal bickering and conflicts, two survive with an uncertain end, but presumably they did the 'right thing.' for humanity and the seagulls.
Dirty oversimplified and opinionated plot summary
(spoilers after this point).
In a water world type of earth, two warring continents exist between a midway point where the sentinel is stationed. An oil-rig type of military platform. A skeleton crew of 4 expects overdue relief. A derelict ship washes up empty. The captain does not wish it investigated, thereafter everyone's behavior starts to get weird and things get complicated. Turns out there is a 20mt atomic bomb in the sentinel which will destroy both continents if activated, so it's like a deterrent for total war. Both sides apparently want it. In the end, 2 of them die to stupid internal bickering and conflicts, two survive with an uncertain end, but presumably they did the 'right thing.' for humanity and the seagulls.