Barney/Barry learns that his sexual prowess is missing a first act; The gang decides to join a gym together with hilarious results; Lily owns this episode on jokes.
The gang are all involved in the same story, whereby Barney convinces Ted and Marshall to back GNB in the Arcadian battle which ultimately ends Ted and Zoey's relationship.
In a clever ruse, Barney and Quinn set up the gang to believe they've ruined their relationship. Robin and Ted squable over Quinns apartment and Marshall retells ill advised sex stories about him and Lily.
While Marshall and Lily struggle to find an affordable Nanny, Barney grabs their best option from under their noses and Ted/Robin compete over who has the best relationship.
