Barney and Robin are on their way to Farhampton for their wedding on the season finale of How I Met Your Mother. "Something New" is the 23rd episode of the show's eighth season.
Lily worries about what will become of her and Marshall if she takes a job in Rome on How I Met Your Mother. "Romeward Bound" is the 21st episode of the show's eighth season.
Barney uses his supposedly destroyed playbook to help Ted with his girl troubles on How I Met Your Mother. "Weekend at Barney's" is the 18th episode of the show's eight season.