It's all here; the flying saucer, atomic submarines, overbearing narration, stock footage, terrible effects and cheap sets. This is B movie writ large. It has an interesting premise, no doubt about it, and must have been a real draw back in 1959. Unfortunately, the rest of the components of the movie doesn't come close to delivering on it.
The story is simple enough, the newest atom sub investigates terrible disasters befalling ships and subs in the arctic, only to discover it may well be an alien intelligence at work. We get lots of bombastic narration, a sure sign of a poor screenplay, and it's slapped over lots of stock footage of several submarines which in no way resemble the models or sets. The model work is uncommonly poor, probably due to the difficulty of simulating underwater and under ice vistas on a budget smaller than a kids allowance. It's charming and interesting to look at, but still poor and never conveys any real scale.
As for the acting and script, we have several faces familiar to 50's B movie fans, and they do what they can with a sub par script. The supposed conflict between the 'hero' and the son of his mentor is so forced that you wonder why no one just slaps him or sacks him on the spot. They actually look a little embarrassed delivering the lines. The sets are pretty sparse too, both in looks and number. You could count the locations on one hand, not including the fish tank used for the special effects, with the UFO being particularly minimalist. The scene with the young guy piloting the mini sub in particular stands out as there are no controls for him to work, so he plays with a graph pen while 4 guys in frogmen gear stand around watching him struggle to improvise.
All things considered it's no classic, but that won't stop genre fans watching it to the end. It's a bit slow and a bit rubbish, but it's heart is in the right place and you want to like it despite it's flaws. Go see it for free at the Internet archives and see for yourself.
