Barney gets tickets for Robots vs. Wrestlers and wants to start a tradition that they whole gang goes every year. Meanwhile, Ted and Marshall have been receiving mail for Marissa Heller, the former occupant of their (now Ted's) apartment for years, and have created a profile of her based on what she is sent. When Marissa Heller receives an invite to a party for the same night, at a very special architectural building that Ted has always wanted to see the inside of, they all decide to go to the party before the event. However, Robin has plans with Don and cannot join them. At the party, the gang is bored by the intellectual crowd including Peter Bogdonavich and Arianna Huffington however, Ted is so stimulated by all the intellectuals at the party, including the actual Marissa Heller, that he wonders if it is time for him to branch out from the gang like Robin has. The others go on to Robots vs. Wrestlers without him and Lily and Marshall discuss starting a family, and Barney panics that the gang is falling apart. At the end of the event they see Ted's doppelganger; a Mexican wrestler. In the end both Robin and Ted reconnect with the gang at the bar, embracing all that they are to each other.