Spanning 24 episodes, Season 9 breaks the show's traditional format by focusing almost entirely on the 56 hours leading up to the ceremony at the Farhampton Inn. While the gang deals with pre-wedding jitters and massive life shifts—Marshall’s cross-country trek to get to the wedding and Ted’s impending move to Chicago—the "Mother" (Tracy McConnell) is finally woven into the narrative. Key Highlights

For the first time, we see how Tracy impacts each character's life individually before she ever officially meets Ted on the train platform.

Whether you loved the controversial ending or just the journey to get there, Season 9 is an emotional farewell to the booth at MacLaren's Pub.

The conclusion of the legendary "Slap Bet" with the final two slaps delivered in spectacular fashion.

Guest appearances from past fan-favorite characters as the series ties up loose ends. The Series Finale: "Last Forever"

A season-long road trip with a new friend, Daphne, as Marshall races to New York to tell Lily he accepted a judgeship.