Don and Duck butt heads over the matter of wanting younger creative talent. Meanwhile, the staff is confused on how to approach the airline company account, and Betty runs into a former roommate who shocks her with a new career choice. Plus, Joan is at a loss of where the copying machine should be placed.

American Airlines Flight 1 has crashed, killing all on board, including the father of one of Sterling Cooper's employees. Sensing an opening, the management of Sterling Cooper consider dumping their account with a regional airline to gain a more lucrative national account with American Airlines. Paul's party at his New Jersey apartment has some consequences at work, and Peggy reluctantly visits with her family.

A drunk comic insults the owner of the product for which he is filming a commercial; consequently, Don must fix the situation so that the company doesn't lose the account. Harry discovers that he is being paid less than his co-worker and tries to make an impression on his bosses so he can ask for a raise.

Peggy attracts the attention of a new priest in her family's parish. Sterling Cooper prepares for a presentation to American Airlines. Betty continues to feel frustrated with Don's contribution to parenting.

Don gets into some trouble with Bobbie Barrett. Peggy thinks about what happened after she gave birth. Pete and his wife go to a doctor to deal with their trouble conceiving. Joan finds a new secretary for Don.

An idea for a client comes out of an after-hours get-together that Peggy was not invited to, which makes her feel left out at work. Don continues to see Bobbie. Duck's children - and dog - visit the office when his ex-wife drops them off early.

The staff is curious about a painting that Mr. Cooper has hung in his office. Don is drawn into the more elite world of his superiors through an invitation to philanthropy. Sal invites Ken to a dinner at home with his wife. Don's secretary and Joan continue to clash.

Peggy is asked by Father Gill to lend her talents to the church project. Also, Don and Duck use a new marketing demographic as a means of wooing a foreign beer client. Plus, Harry looks to an unlikely source when his department is overwhelmed by work.

Freddy Rumsan has no luck at his meeting with his team as he makes a pitch. Meanwhile, Pete uses the exploites at the office. An old friend is given Don's loyalty. Sara Beth proves to be a good ally for Betty.

Betty pays a visit to see her sickly father; Sheila, Paul's girlfriend advices him on his civic responsibilities; and Pete's mother tries to stop a big family move in which he and Trudy are planning.

Don hooks up with some interesting new acquaintances on his trip to Los Angeles. Peggy is searching for an office romance. Duck contemplates his future at Sterling Cooper.

Don renews acquaintances with an old friend. A major account may be compromised by Pete’s personal problems. Meanwhile, Joan shows off her fiance around the office.

Sterling Cooper is in play and the office scrambles without Don and Betty learns some disconcerting news.