8. In Care Of (Season 6, Episode 13)

By Season 6, the wheels had fully fallen off Don’s life as erratic decision making and copious amount of day-time drinking makes his job untenable. A pitch to chocolate giants Hershey’s sees Don blurt out that he was brought up in a brothel and physically abused as a child.

It’s the first time he publicly opens up about his childhood to anyone apart from his first wife, Betty. But despite losing the client and being forced to take a leave of absence, a weight is lifted off his shoulders and the episode ends with him taking his children to visit the dilapidated home he grew up in. Closure for him, kind of.

7. Person to Person (Season 7, Episode 14)

As far as endings go, the show’s finale ties up pretty much every loose end you could ask for. Pete Campbell and wife Trudy move to Wichita, Joan starts her own business and Peggy and fellow creative Stan Rizzo admit their love to each other.

Don, meanwhile, heads to retreat in California to distance himself from advertising and for some much-needed therapy. The show’s final scene, however, shows that isn’t quite the case – as a meditative state inspires him to create the famous ‘I’d like to buy the world a Coke’ advert from 1971. You can take Don Draper out of Madison Avenue, but you can’t take Madison Avenue out of Don Draper.