To be candid, I don’t remember it. It was narrated by Jack Webb. I saw it at the same time as another movie that had a nuke bomb go off in Los Angeles, followed a family heading for the hills, and I can’t remember THAT movie either. Both had clueless teenagers. The anti-commie message was clear.
People who weren’t raised in the cold war consider these kinds of movies to be comedies like watching “Reefer Madness”.
That was “Panic in Year Zero” with Ray Milland and and a very young Frankie Avalon.