Watch How I Met Your Mother Season 2 Episode 21 online via TV Fanatic with over 6 options to watch the How I Met Your Mother S2E21 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, and Verizon On Demand.
|YouTube Purchase||Watch Now|
|Google Play||Watch Now|
|Verizon On Demand||Watch Now|
By the time their wedding day arrives, nothing turns out as Lily and Marshall have planned. Barney steps in to help save the day.