Joan and Peggy deal with high-jinx in the office.Episode titles: 4.1 Public Relations 4.2 Christmas Comes But Once A Year 4.3 The Good News 4.4 The Rejected 4.5 The Chrysanthemum and the Sword 4.6 Waldorf Stories 4.7 The Suitcase 4.8 The Summer Man 4.9 The Beautiful Girls 4.10 Hands and Knees 4.11 Chinese Wall 4.12 Blowing Smoke 4.13 Tomorrowland 10 p.m. Sunday. AMC. Find a new Rolling Stone interview with Matt Weiner here.