The gang is attending a black tie event at the Natural History Museum, thanks to GNB. Much to Ted’s surprise he runs into Zoey, his nemesis; she is the wife of a huge GNB client, boat enthusiast, self nick-named, the "Captain." Ted is shocked to find out Zoey is the rich trophy wife of this older man.
During the event, Zoey takes Ted aside and manipulates him with a sob story getting him to say incriminating things about GNB and the fact that he regets having to tear down the Arcadian. Ted is shocked to find out Zoey has recorded him. After Zoey overhears her husband telling Ted he will erase the tape, Zoey tells Ted she will erase the tape herself, and beat him fair and square.
Meanwhile, Marshall has been offered a 5 year contract with GNB and he tells Lily he wants to take it, abandoning his dream of becoming an environmental lawyer in exchange for financial security for their family. She is forced to examine and accept how their priorities have changed since college but there love for one another has not.
Meanwhile, Barney tells the story of when he was 6 at the museum with his Uncle Jerry he broke off a triceratops rib bone and used it to knock down the big blue whale. No one believes him, especially Robin. Barney and Robin proceed to dare each other to touch museum displays topping each other at every exhibit. Now in the Security office, having been caught, the guard references the kid who knocked down the blue whale. He looks up the file and confirms it was Barney and that Barney’s guardian that day, Jerome Whitaker, signed the paperwork confirming he was the boy’s father. Barney is somewhat shocked that his "Uncle Jerry" whom he barely knew may actually be his Dad.