Barney becomes fixated on having his rehearsal dinner at a laser tag arena, much to Robin's dismay. Meanwhile, Ted doesn't come through on a promise, which aggravates Lily. (TV-14 D)
Marshall tries to get Marvin to sleep by reciting three rhyming bedtime tales about his friends as they wind down their epic cross-country journey. James Van Der Beek and Lin-Manuel Miranda guest star. (TV-14 D, L)
When Barney's father arrives at the hotel, Barney devises a plan that makes Robin very nervous. Meanwhile, Ted is convinced someone framed him by messing up a wedding-related duty. John Lithgow, Frances Conroy and Wayne Brady guest star. (TV-14 D, L)
In a flashback episode, the gang ponders the future of the Ted, Robin and Barney love triangle. Meanwhile, Barney accepts a series of challenges from Lily and Robin. (TV-14 D, L)
When Robin and Loretta's conflict escalates, Barney is caught in the middle. Meanwhile, Marshall and Daphne deal with a stowaway on their road trip, and Ted and Cassie try to enjoy a trip to a lighthouse. (TV-14 D, L)
Season 5, Episode 16 (Hooked): Guest starring Carrie Underwood. When the gang tries to convince Ted that he is being strung along by Tiffany, they reflect on the relationships in which each of them had been in the same situation.
Season 5, Episode 15 (Rabbit or Duck): Lily and Marshall investigate the girls Barney has dated in order to see if any of them could be Ted's future wife. Meanwhile, Robin is invited to a party by an obnoxious colleague.
Season 5, Episode 14 (The Perfect Week): When Barney is about to complete the perfect week - landing seven different girls in seven days - the gang roots him on in order to forget about their own miserable week.
Season 5, Episode 13 (Jenkins): Featuring guest star Amanda Peet (as Jenkins). When Marshall's co-worker kisses him, he can't get Lily to believe it happened. Robin discovers she's the subject of a drinking game.
Season 5, Episode 12 (Girls Vs. Suits). Barney chooses between wearing suits and sleeping with a sexy bartender. Meanwhile, Ted dates a student from Columbia and reveals she's the roommate of his future wife.
Robin lays down the law with Barney and tells him there shouldn't be any more surprises in their relationship.
Barney's true plan for the rehearsal dinner comes out.
Robin is angry because she finds herself in a laser tag security office waiting for the police to arrest Barney.
Barney insists Robin is hiding the fact that the rehearsal dinner is at the laser tag place.
How I Met Your Mother: Season 3 clip - starring Josh Radnor, Jason Segel, Cobie Smulders, Alyson Hannigan, Neil Patrick Harris, Bob Saget.
How I Met Your Mother: Glitter clip - starring Josh Radnor, Jason Segel, Cobie Smulders, Alyson Hannigan, Neil Patrick Harris, Bob Saget. Directed by Pam Fryman.
How I Met Your Mother: Season 6 clip - starring Josh Radnor, Jason Segel, Cobie Smulders, Alyson Hannigan, Neil Patrick Harris, Bob Saget.
How I Met Your Mother clip - starring Josh Radnor, Jason Segel, Cobie Smulders, Alyson Hannigan, Neil Patrick Harris, Bob Saget.