Ned Rolsma

Barney freaks out when Marshall bequeaths a "slap bet" slap to Ted and Robin. Meanwhile, Lily's estranged father shows up for Thanksgiving.

Ted tries to prove he's not pathetic for getting left at the altar, and Barney tries to impress Robin, who thinks fighting is sexy, by fighting with patrons who are sitting in their favorite booth.

Thanksgiving with Marshall's family is especially stressful for Lily because she thinks she may be pregnant. Elsewhere, Robin, Barney and Ted spend the holiday volunteering at a homeless shelter.

When Zoey fixes Ted up on a date with her cousin (guest star Katy Perry), the gang resorts to calling her "Honey" after learning how naive she is. Meanwhile, Ted calls an intervention on himself after having an epiphany about his feelings for Zoey, and Barney gets acquainted with Honey in Ted's place.

With Marshall’s beloved Fiero in the shop for repairs, the gang reminisces about good times spent in the old car, and Marshall realizes that it may finally be time to let it go.