Ted throws a party in hopes of seeing Robin again, but when she doesn't show up, he throws another... and another.

Barney's plan to meet girls at the airport backfires as he and Ted are picked up by airport security. Meanwhile, Lily gets jealous of Robin.

Ted reconnects with an old flame and soon remembers why he dumped her in the first place. Barney pays Robin to say outrageous things on the air.

Robin, Ted, and Barney go to a hot new club, leaving the engaged Marshall and Lily to a more adult, albeit boring, evening of wine tasting.

Marshall and Lily enter a Halloween costume party and Robin brings her new boyfriend. Ted and Barney go to the same Halloween party they go to every year where Ted looks for his lost love, the Slutty Pumpkin.

When Ted signs up with a matchmaking service, he learns that love is not a science. Marshall and Lily confront a creature living in their apartment.

Lily moves in with Marshall and Ted, and when Ted suspects that he's being edged out of the apartment, he and Marshall decide to settle it like men.

Thanksgiving with Marshall's family is stressful when Lily thinks she might be pregnant. Robin, Barney, and Ted spend the holiday volunteering.

After an alcohol-induced blackout, Ted awakens to find a strange woman and a pineapple in his bed.

It's New Year's Eve 2005 and Ted spends a large portion of his Christmas bonus for a limo for him and the gang. In addition, he has outlined a plan for how they will ring in the New Year. Unfortunately, things don't always go as planned.

Ted's romantic hopes are dashed when he invites Robin to a fancy wedding, only to discover that the bride-to-be won't allow him to bring a date.

Robin is emotionally torn when Ted meets an exciting new woman, Victoria, at the wedding. Afterward, though, he doesn't know how to contact her.

Hiding in the bathroom, Marshall and Lily wait for Ted and Victoria to consummate their relationship, and Barney gets the wrong idea from Robin.

Marshall's game night leads to some startling and very embarrassing revelations.

Just as Ted and Victoria's relationship is beginning to flourish, she's offered a scholarship to a culinary institute in Germany.

With Victoria in Germany, Ted faces the pitfalls of long-distance relationships. Marshall has trouble fitting in at Barney's company.

With Victoria on his mind, Ted has conflicted feelings when Robin invites him over for a late-night rendezvous .

Ted needs a date to take to Robin's awards banquet, so Barney hooks him up with Mary, who may be a call girl.

With her wedding day fast approaching, Lily, along with Barney and Robin, crashes a high school prom to scope out a potential band for the reception.

Ted is excited when a matchmaking service claims to have found his soul mate, but he postpones his date to help Lily, who has a surprising revelation.

Ted makes a final attempt to win Robin's heart. Marshall and Lily's relationship is in jeopardy.