The Last Rites of Jeff Myrtlebank - S3-E23
Continuity mistake: An entire piece of toast disappears off of Pa's plate from one shot to the next. (00:08:40)
The Last Rites of Jeff Myrtlebank - S3-E23
Continuity mistake: Jeff corners Orgram behind a tree with a tire swing hanging from it and punches him to the ground. But in the next shot, Orgram is still on the ground and the tree and tire swing are nowhere in sight. (00:17:35)
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.