King Nine Will Not Return - S2-E1
Continuity mistake: Embry soaks the front of his shirt with water from the canteen. But when he runs toward the B-52's cockpit and turns around a moment later, his shirt is completely dry again. (00:10:10)
King Nine Will Not Return - S2-E1
Factual error: Military personnel in the desert would not be wearing dark uniforms but a light khaki tan.
King Nine Will Not Return - S2-E1
Factual error: The shape of the B-25's top gun turret is completely different from the turrets actually used on these bombers.
Answer: It's explained in the episode. The aliens are experimenting to see how humans react to various scenarios. This just happens to involve them using super strength.
Thanks. It's been a long time since I saw the episode so I forgot.