Vesuvius
Robin and Lily have a fight on the morning of the wedding; Barney can't decide what suit to wear; the gang watches a movie that Ted didn't want them to see.

Cast
Josh RadnorTed Mosby
Neil Patrick HarrisBarney Stinson
Jason SegelMarshall Eriksen
Alyson HanniganLily Aldrin
Cobie SmuldersRobin Scherbatsky
Cristin MiliotiTracy McConnellHow I Met Your Mother on tvt

