Continuity mistake: Doug and Peter are running to meet the ambulance transporting the boy with the crushed leg. From the back we see Doug with his arms out as he runs, but the shot changes to the front and he has his hands in his pockets, with no time to change naturally. (00:10:40)
Continuity mistake: Carol and Carter are in the room with the patient Tatiana and the dog; Tatiana has a yellow marker in her hand. In some shots she appears to be hugging the dog and in others drawing something with the marker, with no time to change positions. (00:21:50)
Continuity mistake: Carol goes to visit Tatiana while she is sleeping. As the camera shows a shot from above, the blanket over the girl has changed position noticeably. (00:31:40)
Continuity mistake: At the very end of the show, Carol is sitting on a gurney with Tatiana - the little girl is holding her doll by its waist. The shot changes and suddenly she is holding it around its neck.
Answer: It was in "Chaos Theory", the first episode of season 9 (time code 00:13:55).
Super Grover ★