Lily discovers Robin is secretly a Woooo! Girl, and Barney sabotages Ted's chance to get the contract to design a new bank skyscraper.
Charlie has difficulty dealing with dating a slightly older woman.
Nana's getting married - news that has Sandy, Seth and Ryan off to Miami. Back in the OC, Zach wows Summer with a home-cooked meal, Kirsten sorts out her Carter feelings and Trey's feelings for Marissa take a terrifying turn.
When a man next to House on a flight from Singapore to the United States becomes violently ill, Cuddy suspects he has a deadly contagious virus.
A campus football player hires Veronica to find his stolen playbook before the next practice; Dean O'Dell (Ed Begley Jr.) threatens to expel Veronica.
