1 Series, 5 Episodes
While Barney prepares for his wedding to a mystery bride, he and Ted reminisce about Punchy's wedding. And Robin considers telling Barney she has feelings for him.
Marshall lands his dream job but worries if his past indiscretions will cost him the role. Meanwhile, Ted can't decide who to bring to the Architects Ball.
Ted tries to make amends with an ex-girlfriend he cheated on during their relationship.
Robin assaults a girl who is out to ruin Barney's relationship and is forced to begin court-mandated therapy sessions as punishment.
When Marshall witnesses his boss's soft approach in settling with a powerful company, he takes matters into his own hands. Ted takes his class on a trip.
Ted shocks his friends by going on a date without researching the woman on the internet beforehand. Lily and Marshall find out the sex of their baby.
The gang realise that their partners bear some resemblance to their parents. Meanwhile, Barney and Nora's romantic evening is ruined by a string of disasters.
Ted finally meets the mystery girl who attracted his attention by wearing a pumpkin costume at a Halloween party 10 years previously.
Barney's desperate to get rid of the ducky tie and even offers up a slap in exchange for being allowed to remove it.
Robin and Barney feel guilty about their liaison. Their guilt is compounded when they go on a work cruise together with their partners.
Ted and Barney plan to adopt a child together because as men they feel they understand each other better than a man and a woman ever could
Marshall is determined to decorate his house with the most spectacular Christmas lights display.
On New Year's Day, Marshall is at the cemetery to visit his father's grave, where he ponders about some of his friends' New Year's Eve celebrations.
Marshall and Lily have officially moved to the suburbs, but are being pushed to their limits by Lily's father Mickey, who has been living with them.
Lily and Marshall throw a housewarming party at which Lily's father Mickey causes consternation by admitting he is keeping bees in the basement.
Barney persuades Ted to join him on the 'drunk train', the last night train from Manhattan to Long Island, where there are many chances to pick up women.
Ted tells Robin that he loves her just as she is setting off on her trip to Russia. Barney makes a discovery about Marshall and Lily when he snoops on them.
Barney thinks the way that Quinn is manipulating him is payback for the way he has treated women in the past. Ted is still upset about Robin moving out.
Barney tries to persuade his friends to meet Quinn and get to know her properly. However, Ted is convinced that Quinn is only after Barney's money.
When Barney and Quinn start living together, Barney's reluctance to throw out his old possessions makes the gang doubt his faith in the relationship
Marshall is astounded when he discovers that Lily has had an erotic dream about Ranjit. Barney's attempts to take Ted's mind off Quinn's stripping have unexpected consequences.
Despite pretending to play it cool, Barney is plagued by jealousy as a result of his girlfriend Quinn's occupation as a stripper and he attempts to persuade her to switch careers
Lily goes into labour while Marshall is in Atlantic City, so Ted and Robin try to distract her from the painful contractions by telling her amusing stories from the group's past
Robin struggles to take a perfect photograph of baby Marvin to feature in the birth announcement