While the company revels in the glory of its successful Jaguar pitch, Lane reaches breaking point. Plus, Sally is reunited with an old friend.
While Don and the team prepare their pitch for the agency-defining Jaguar account, Joan receives a lucrative offer. Plus, Peggy makes a big decision.
Roger puts on his entrepreneur hat; Don asserts himself over his colleagues; Sally gets in over her head.
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.