A sequel to THE THING FROM ANOTHER WORLD with a whole shipload of carrot men arriving in the Arctic to look for their lost companion from 50 years ago. It took this long for them to get here because of the distance to their solar system...James Arness' THING sent a SOS signal before the ship exploded. This should've been done when Ken Tobey and Robert Cornwaite and some of the other cast were still around.
It could've been called KEEP WATCHING THE SKIES (sorry Bill)