When Tom meets fellow New Yorker Bob they instantly become best friends but the same can't be said when their wives meet. Susan tells Tom that Bob's wife was a girl that Mary and she hated back in high school. Meanwhile, Dave talks Chris into betting on a football game behind Mary's back.

Tom wants to socialize with couples other than Mary and Chris, so Susan – who has a history of disastrous set-ups – secretly sets up his friend, Bob, at Mary's Oscar viewing party.

Mary moves in with Tom and Susan after she has a fight with Chris. Meanwhile, Lewis invites his girlfriend over for dinner.