Don runs into someone from his past. Joan makes a decision, and Roger gives Peggy extra work.
As Sterling Cooper Draper Pryce tries to build upon its current business, Peggy is given new responsibility. Don and Harry indulge a client.
Megan throws Don a surprise birthday party, the war between Pete Campbell and Roger Sterling intensifies, and new mother Joan begins to wonder if she still has a job when she's ready to come back.moreless
Lane finds a wallet in a cab and decides how to handle it. The fallout from the party leaves Don and Megan upset. Joan has a hard time dealing with her mother.
Alicia's case is in jeopardy when her key witness kills himself. Meanwhile, Eli helps Peter.
Lockhart Gardner represents a patient in a case against Patti Nyholm over a liver transplant, but ends up working with her after she fires her firm. Meanwhile, Alicia has to deal with the fallout of the news about Kalinda and Peter's affair.moreless