Episode: "In Care Of" (613)
Season 6 kept picking up steam as it rolled along, culminating in a remarkable trio of episodes. But the finale was an outright showstopper
highlighted by Don revealing the truth about his boyhood during the Hershey pitch to the final scene of Don taking Sally, Bobby and Gene to the whorehouse he grew up in.
The action-packed hour also included the beginning and end of Peggy and Ted's affair, Pete's outrage at Bob when his mother is lost at sea, Joan inviting Roger into their son's life, Megan walking out on Don when he backs out of moving to California, Betty's heartfelt phone call with Don discussing Sally's rebellious behavior, and the SC&P partners putting Don on a forced leave.
A true stunner.