Marshall and Lily make a secret pact to start trying to have a baby if they ever finally see Barney’s doppelganger. Meanwhile, Robin finally gets an offer for her dream job.

When Ted takes a date to see a new hit movie, “The Wedding Bride,” he is shocked to learn the story is loosely based on his life, and that it was written by Tony, the man Stella left him for at the altar.

When Ted, Marshall, Lily and Barney crash a highfalutin party at a swanky New York apartment, Ted gets the chance to mingle with the snooty guests and show off his intellectual side.

When Ted and Barney jeopardize Robin’s new relationship by professing their love for her, Robin realizes that she is finally over them. Meanwhile, after spending a weekend sleeping in twin beds, Marshall and Lily decide to get twin beds at home.

When Ted attends his mother’s wedding, he is extremely disturbed by her overly affectionate relationship with her fianc, which forces him to think about his own life and make an impulsive decision.

When Marshall gets mugged, Lily decides she wants to get a gun for protection, so Marshall comes up with a convoluted story about the mugging to deter Lily from following through.

When Ted ruins Lily’s birthday dinner celebration by bringing a date, Lily goes to great lengths to keep her out of the traditional photo she takes every year of the gang.

Barney is driven mad by a woman who seems to be following all the rules in a new guide book for single women. In fact, she’s the one who wrote it…

When a beautiful young woman “hooks” Ted (keeping Ted in reserve as backup while she pursues her own dream boyfriend), the gang discusses their own experiences both as the one who “hooks” and the one on the hook.

Marshall and Lily set up Ted with one of Barney’s discards as a Valentine’s Day date. Meanwhile, Robin’s invited to a party by a co-worker.