Cry of Silence

S2, E6: Andy and Karen Thorne drive to remote Wild Canyon to inspect some farmland that they may purchase. En route their car stalls - they've been roadblocked and surrounded by sentient tumbleweeds! Farmer Lamont discovers the beleaguered couple and rescues them. Driving them back to his farmhouse he reveals that a meteor-like object recently plummeted to Earth in the vicinity. Andy and Karen soon realize that Lamont - like the weird tumbleweeds - is possessed by an alien power. Andy puts himself in jeopardy in an effort unravel the unearthly mystery of Wild Canyon.