Barney tries to make his life seem more exciting as he bonds with his father; Robin encounters a guy she likes.
Jonah offers to help when Cloud 9 is flooded with people who want the flu shot, leading to his most stressful day yet. Amy and Carmen are asked to put on sombreros and hand out salsa samples.
Sheldon learns the university is building a database without him; Mary takes care of a bedridden Mandy and Meemaw.
As members of Bravo team travel to New York City, they reflect on a day that shaped each of their lives forever.
Caroline and Max go on a road trip to Philadelphia, to attend Caroline's former nanny, Antonia's funeral. They hitch a ride from Bebe at the pastry school.