If it weren't for Ib Melchior, Irwin Allen would never have made Lost in Space or The Time Tunnel. Yet Allen had connections so Ib mostly shut up. This, one of my three favorite time travel movies from the 60s (then others being the incomparable The Time Machine & Beyond the Time Barrier) is so well done it transcends it's low budget. Every penny is on screen. A group of scientists opens a portal into the future - a horrible one - and must find a way home.