With the wedding ceremony just hours away, things look desperate when Robin can't wake Barney. "Rally" is the 18th episode of the show's ninth and final season.
Marshall, Ted, Robin and Lily all stand outside the house in "The Stinsons." In this episode, the guys meet Barney's wife and child they never knew existed.
Lily attempts to join the group of woooo girls, but when she lacks the necessary cowboy hat she rocks a firefighter hat she got from fire safety in school. Hawt.