ROBIN AND LILY HAVE AN ARGUMENT AND BARNEY PANICS ABOUT WHICH SUIT TO WEAR ON THE MORNING OF THE WEDDING, ON THE FINAL SEASON OF "HOW I MET YOUR MOTHER," MONDAY, MARCH 3

Lucy Hale Returns as Robin's Sister Katie, Chris Kattan Returns as Jed Mosely, And Jon Heder Guest Stars as Narshall

"Vesuvius" - On the morning of the wedding, Lily and Robin have a fight and Barney freaks out about which suit to wear. Meanwhile, the gang watches a movie Ted has forbidden them to see, on the final season of HOW I MET YOUR MOTHER, Monday, March 3 (8:00-8:30 PM, ET/PT) on the CBS Television Network. Lucy Hale returns as Robin's sister Katie, Chris Kattan returns as Jed Mosely, and Jon Heder guest stars as Narshall.

SERIES REGULARS:

Josh Radnor (Ted)

Jason Segel (Marshall)

Cobie Smulders (Robin)

Neil Patrick Harris (Barney)

Alyson Hannigan (Lily)

Cristin Milioti (The Mother)

RECURRING CAST:

Bob Saget (Narrator)

GUEST CAST:

Roger Bart (Curtis)

Chris Kattan (Jed Mosely)

Lucy Hale (Katie)

Jon Heder (Narshall)

Barbara Nathanson (Grandma)

WRITTEN BY: Barbara Adler

DIRECTED BY: Pamela Fryman

RATING: To Be Announced