Directed by Pamela Fryman. With Josh Radnor, Jason Segel, Cobie Smulders, Cristin Milioti. On their wedding day, Barney has a massive hangover. The gang. Use this thread to discuss S09E18 "Rally"** **This is the final In the season premier Ted was telling his kids things about the mother that they already knew. Confirm from promo that she also shows up next week too. S09E18 Rally Episode. Rally. The gang must figure out how to make the Stinson Hangover Fixer Elixir to help Barney recover on the day of the wedding.