Pete's professional and personal lives become more complicated as he struggles to assert power in both. While facing pressure from his wife regarding a new apartment, he further alienates Don and endangers his own position at Sterling Cooper.

On election night, the Sterling Cooper staff pulls a rowdy all-nighter while watching the returns. Pete's ambitions cause him to directly challenge Don. Don remembers his past as a soldier in the Korean War.

Paul hosts a party at his apartment and introduces someone special to his Sterling Cooper colleagues. Peggy visits her family for dinner. Despite a conflict of interest, the Sterling Cooper agency aggressively pursues an airline account and Duck attempts to appeal to the client using an unorthodox approach.

Betty visits her father; Paul's girlfriend tries to convince him to prioritize his duties; Pete's mother disapproves of his and Trudy's idea.

Don decides to include Betty on a company business trip. Pete lends a hand to a neighbor in his apartment building.

Joan and Peggy deal with high-jinx in the office.