Picking up from last season, Ted is best man at Barney's wedding to a mystery bride. Barney has some pre wedding jitters which reminds Ted of the worst wedding ever, his friend Punchy's. We flashback to Punchy's wedding in the present day where Ted is the best man, and the entire wedding is greatly anticipating Ted's toast because to everyone's amusement, Ted has a history of getting very emotional. Meanwhile, Marshall and Lily have not told the gang that they are pregnant and are trying to keep it a secret so Marshall is forced to drink Lily's drinks to avoid any suspicion. Marshall proceeds to get very drunk and comes close to ruining the wedding numerous times. In addition, Lily has forced Robin to admit to she still has feelings for Barney and just as Robin is preparing to tell him he gets a call from his ex-girlfriend Nora. Marshall and Lily eventually decide it is time to tell the gang their baby news. In the end, Ted gives his speech and as expected, is brought to tears, however Marshall interrupts him and announces to everyone that Ted's tears are of joy and points to Lily saying she is pregnant. The bride thinks he is pointing at her and is shocked he has exposed that she is actually pregnant which upsets her father who in turn gets in a fight with Punchy's father, ultimately ruining the wedding.
