1) An ice age has covered the Northern Hemisphere. Contact is established with London, and an expedition from New York heads out on rocket sleds. They have to battle outlaw gangs and packs of wolves on the way. (I think this is from the late 50s). 2) In the future, the interstates have lanes that are color coded for speed, cars travel at 300mph between cities. The good guys and bad guys battle with force field weapons. The loser gets entrapped in an ever shrinking field that eventually squashes him into a rectangle of bloody pulp a few inches square. (A little James Bondish, maybe early to mid 60s?). 3) An expedition to the Amazon encounters prehistoric beasts, primitive tribes, etc. Their progress is tracked by a ham radio operator with a bunch of ancient radio gear. He is the only person who can receive the faint signals, other high tech receivers mysteriously aren't effective. (50's maybe?).