Rally
The gang must figure out how to make the Stinson Hangover Fixer Elixir to help Barney recover on the day of the wedding.

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

