Continuity mistake: Molly's mother walks away from her daughter's bed and towards her ex-husband and has moved about a foot from the bed; the next shot goes back to Molly's face and we can see her mother's hand still on her shoulder, even though this would be physically impossible.
Continuity mistake: When the little boy pounds on Doug's car window, the light outside goes from twilight to dark to twilight again, all in a few seconds.
Continuity mistake: While Doug is giving CPR to the kid that was stuck it is pouring rain and everyone is soaking wet. When he runs with the kid and cop to the ambulance, it is no longer raining and they are all dry.
Continuity mistake: Peter is standing next to the bed of a the little girl who was hit by a car, talking to her parents. Suddenly there is a paper in his hand which hadn't been there in the shots before.
Answer: It was in "Chaos Theory", the first episode of season 9 (time code 00:13:55).
Super Grover ★