Barney, freshly cut off from Ted seeks a new Bro and takes on Randy (Will Forte) as said bro/project. Ted tries to temper Stella's expectations for sex when he finds out it's been 5 years since her last experience. Jen gets to eat her potato skins.
Lily and the gang confront Ted about bringing new relationships into their biggest celebrations with hilarious flashbacks. Barney has a magical relationship with cameras.
Ted is faced with the possibility that he's the bad guy in the story of him and Zoey after spending time with the Captain. Barney wrestles with his feelings for Nora. Marshall won't throw one at Lily until he solves the world pollution crisis.
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.
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.