On this week's episode, the big three are all visited by their parents, causing a wave of regression among the young doctors. In the real world, the big three are back in action, as Sarah Chalke joins Zach and Donald for another trip down memory lane.

202: My Nightingale
56:12

201: My Overkill
1:22:42

124: My Last Day with Bill Lawrence and Christa Miller
1:33:50