A mysterious tape arrives for Barney from one of his numerous ex-girlfriends, and the entire gang watches it. But, in order for them all to find out how she broke Barney's heart and made him into a suit-wearing bachelor, everyone must share their most embarrassing moment.
Casts:
Josh Radnor, Neil Patrick Harris, Jason Segel, Alyson Hannigan, Cobie Smulders, Cristin Milioti