Marshall interns at the corporation where Barney works and Lily finds that he is becoming a shallow jerk as he tries to fit in with his crude fratty coworkers. Meanwhile, Ted feels guilty when he receives several gifts from Victoria (Erika Singh) while he hasn't sent her anything.

After Marshall witnesses a work buddy get yelled at after handing in a report, he becomes paranoid that the same will happen to him.

A birthday party for one of Lily's co-workers leads to Robin connecting with a group of single partiers known as the "Woo Girls". Ted presents a plan for Goliath National Bank's new HQ.

Ted and Robin discover that sex with each other solve their fights as roommates, which makes Barney very jealous and angry. Meanwhile, Marshall reveals that he's too embarrassed to use the office bathroom.

Marshall and Lily are less than thrilled when they hear that Ted's college girlfriend (Laura Prepon) has moved to New York.

Marshall and Barney lie to keep Ted from finding out the headquarters he'd been hired to design for GNB has been cancelled.