As the gang prepares to go to Robin and Barney’s wedding, Ted invites Lily to see the house he's finally finished fixing up. Meanwhile, Robin and Barney’s night of relaxation is ruined by an obnoxious couple, and Marshall takes the baby on a last-minute trip to Minnesota to see his family.
Elenco: Cobie Smulders , Josh Radnor , Neil Patrick Harris , Alyson Hannigan , Jason Segel , Bob Saget , Britney Spears , Candice Accola , Cristin Milioti , David Henrie , Lyndsy Fonseca .