The final series of the AMC period drama was originally split in half, with two sets of seven episodes each airing about a year apart. In the first half, Don (Jon Hamm) attempts to return to his advertising agency after being put on indefinite leave following a meltdown in the middle of a client meeting. Eventually, his status at the firm becomes the focus of a bitter power struggle between Roger (John Slattery) and Jim (Harry Hamlin), both of whom want to take Sterling Cooper & Partners in radically different directions. Elsewhere, Pete (Vincent Kartheiser) embraces life as a Californian, Dawn (Teyonah Parris) gets an unexpected promotion, and Peggy (Elisabeth Moss) clashes with the stodgy creative director (Allan Havey) who's replaced Don. The second half sees the series finally leave the 1960s behind as it picks up with the characters in 1970: The agency's partners are now all wealthy after accepting a buyout from a much-larger firm, but they seem as lost and frustrated as ever. While Joan, Roger, Peggy, and Ted (Kevin Rahm) all embark on new love affairs, Don responds to the pressure of working in a more-corporate environment by attempting to run away and reinvent himself once again.