The gang must figure out how to make the Stinson Hangover Fixer Elixir to help Barney recover on the day of the wedding.
| Title | Rally |
|---|---|
| Genres | Comedy |
| Release Date | 2014-02-24 |
| Episode Runtime | 00 Hours 22 Minutes |
| Season Number | 9 |
| Episode Number | 18 |
| Production Companies | Carter Bays, 20th Century Fox Television |
