Continuity mistake: Lizzie puts two cans of soft drink on the table in front of Peter - but a short time later they have moved noticeably, even though neither of them touched them.
Continuity mistake: When Carter comes into the ER with breakfast for everyone, he slips on the muddy floor and the food goes flying. A cardboard tray flies straight up from his left hand but ends up a few feet to his right, which defies the laws of physics.
Continuity mistake: Dr. Wesr is talking to Kerry outside while it is snowing. He has quite a lot of snow on his shoulders, but within a few seconds, most of it has disappeared, which in real life wouldn't happen.
Answer: It was in "Chaos Theory" which is the first episode of season 9 (time code 00:13:55).
Super Grover ★