The Human Factor, directed by Abner Biberman.
Isolated military bases in the arctic are natural locations for SF thrillers, and this one begins like a scene from The Thing from Another World (1951). But no, that's not a alien in ice they are hauling in from the storm, but an atom bomb. The major who is cracking up and seeing guilt-induced visions of a dead man really wants to know how it works.
Not a lot of Outer Limits material here, more like an episode of Science Fiction Theater. As a bonus wrinkle a base scientist is -- for some damn reason at a radar base in the arctic -- working on a mind-sharing rig. When this goes all the way to mind transfer the erratic major has a good chance of getting to his a-bomb.
Many familiar faces. Big star Gary Merrill and Sally Kellerman at age 26. With Harry Guardino and Ivan Dixon and a glimpse of James Sikking.
I did not know that Abner Biberman directed but he has a long list of credits. I remember him best as the comical tough guy Louie in His Girl Friday (1940) ("She ain't no albino. She was born right here in this country"):
Photographed by Conrad Hall.
No commentary track.