After Robin finds out her mother isn't coming to the wedding, the group recalls a fateful night six months ago when Barney accepted the "challenge" of a lifetime, and Ted made a decision about his pursuit of Robin.
Stars: Josh Radnor, Jason Segel, Cobie Smulders
Director(s): Pamela Fryman
Writer(s): Carter Bays, Craig Thomas, George Sloan
Genres: Comedy,Romance