Robin is desperate to find her `something old' which she buried in Central Park years before the wedding. Meanwhile, Marshall and Lily ask for Ted's help packing for Italy, and Barney bonds with Robin, Sr.
When Mickey finds out that Ben takes medication to keep him focused, she is determined to prove that he can function perfectly well without it.
Caroline attracts the attention of a Hollywood executive when she shares her riches-to-rags tale at storytelling night. Sophie and Oleg look for a surrogate.
Don makes a friend; Joan has drinks with a client; Roger receives a perplexing phone call; Peggy hears new work.
In the mid-season finale, Don is troubled by a letter and Peggy considers a new future based on a risky venture. Meanwhile, Pete and Cutler butt heads and Roger receives a phone call.
