Slapsgiving 3: Slappointment in Slapmarra
In an attempt to deliver a devastating final slap to Barney, Marshall explains how he mastered the Slap of A Million Exploding Suns.
The Rehearsal Dinner
Robin is dismayed when Barney wants to have their rehearsal dinner at a laser tag arena; Ted aggravates Lily by not following through with a promise.
Bass Player Wanted
A man at the wedding intentionally stirs up trouble; Marshall finally arrives at the Farhampton Inn.
Bedtime Stories
Marshall tries to get Marvin to sleep by reciting rhyming bedtime stories.
Mom and Dad
Barney concocts a plan when his father arrives at the hotel; Ted thinks he is being framed when a wedding-related duty gets messed up.
Platonish
During a flashback, the gang wonders how the Ted, Robin and Barney love triangle will play out; Barney accepts challenges from Robin and Lily.
The Lighthouse
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.
Knight Vision
When Ted finds himself with three prospects to be his date for the wedding weekend, he chooses poorly. Meanwhile, Barney and Robin have a confrontation with their minister, and Marshall learns more about his driving companion, Daphne.
No Questions Asked
When Daphne sends a troubling text message to Lily, Marshall enlists the gang's help to remove the message while enforcing the "No Questions Asked" rule.
The Poker Game
Barney is upset after Robin wins James's wedding ring during the poker game, and Ted argues with Marshall and Lily over whether he gave them a wedding gift.