How I Met Your Mother Episode Guides
The Mermaid Theory
When Ted's new friendship with Zoey tests the theory that men and married women can't be friends, he invites her husband, "The Captain," to hang out with them. Meanwhile, Marshall and Robin decide to spend alone time together.
Barney and Ted are in conflict on a hot girl they both want to date, until Ted finds out that she's with Cindy, his former girlfriend and future wife's roommate. Marshall's need to start a family is out of the bag, and Robin is sad over her relationship with Don.
When Barney convinces the gang to help his mom move out of her home, they quickly learn that she has been very protective of Barney and lied to him about events throughout his life. Meanwhile, Ted gets upset when Robin oversells him to a blind date.
When Ted declines Barney's offer to design the new GNB building, Barney tries to woo him by using all of his best womanizing tactics. Meanwhile, Robin is still not over her relationship with Don and drunk dials him.
After living in Manhattan for six years, Robin swears she's a real New Yorker. The gang doesn't think so since she's never seen Woody Allen roaming the streets before. After getting a call that Woody Allen was spotted in a downtown restaurant, Robin calls a challenge: Everyone has to race downtown using public transportation they love the most to catch a glimpse of Woody Allen at the restaurant before he leaves. Winner is the deemed the real New Yorker.
Architect of Destruction
Ted becomes conflicted about pursuing his dream job of designing the new GNB headquarters after meeting a hot girl who's passionate about saving the landmark building that is being torn down to make room for it.
Marshall and Lily research how to conceive a baby with the gender of their choice. Meanwhile, Robin is growing more and more irritated by her perky new co-anchor, Becky.
When Zoey enrolls in Ted's class, she manipulates his students into taking her side in the fight to save the building being torn down to make room for his project. Meanwhile, Marshall and Lily spot Robin marching in the Halloween parade of shame.
The gang attends a black tie fundraiser at the Natural History Museum. Ted runs into Zoey and her husband, only to find she's not so anti-establishment after all. Marshall explains to Lily that in order to provide for their future family, the ideals of his younger self may have to be set aside.
When Barney finds a copy of the Canadian kids show "Space Teens" starring Robin's alter-ego "Robin Sparkles," the gang learns more about Robin's past as a performer than they expected.
An old college friend known as "The Blitz" comes to town. He's known as "The Blitz" due to his penchant for leaving a room just before outrageous and awesome events transpire. (It's a Wesleyan College curse that is passed down through generations by unlucky students. ) When Ted leaves the bar early to prepare a Thanksgiving turkey, he misses out on a night of monumental fun, and is now deemed "The Blitz". However, when Zoey, Ted's nemesis, is stuck alone on the holiday, the gang hangs out with her. As the evening progresses, "The Blitz" curse is returned to it's rightful owner.
When Marshall and Lily receive shocking news, it has a profound effect on the gang and forces them to reexamine their own lives. Meanwhile, Robin gets a new job; Barney discovers the joy of giving on Christmas and Ted begins his duties as Best Man for his old friend Punchy's wedding.
When Marshall and Lily fear they will never get pregnant, they see a specialist who can hopefully help move the process along. Meanwhile, Robin starts her new job.
When Zoey fixes Ted up on a date with her cousin, the gang resorts to calling her "Honey" after learning how naive she is. Meanwhile, Ted calls an intervention on himself after having an epiphany about his feelings for Zoey, and Barney gets acquainted with Honey in Ted's place.
It's the funeral of Marshall's dad. As he reminisces about the last thing he said to his father, a final voice mail sets him reeling. Meanwhile, the gang is trying to help make a difficult day a little easier by giving Marshall whatever he wants and providing some laughs.
Barney declares February 13th "Desperation Day," a holiday for desperate women. Meanwhile, Lily surprises Marshall for Valentine's Day, Ted and Zoey continue to figure out their relationship and Robin bonds with her single girlfriends.
After Marshall sees a documentary about garbage, he becomes fixated on saving the environment. Meanwhile, Ted runs into Zoey's ex-husband, The Captain, and Robin forces Barney to admit he has feelings for Nora, the girl who made history as his first Valentine's Day date ever.
A Change of Heart
Barney tries to protect himself as his feelings grow for Nora. Robyn gets involved with a canine-esque man.
When Barney finally meets his father, he's surprised to learn how his life turned out. Meanwhile, the gang points out each other's "gaps," something they should know by adulthood but never learned.
The Exploding Meatball Sub
Marshall finally decides to quit his job at Goliath National Bank to follow his dream of being an environmentalist; Barney thinks he's making a mistake, and Lily is concerned he's in over his head. Ted and Zoey's relationship is strained when their opposing position on the demolition of a landmark building has them on edge.
Barney's father is back. Longing to bond and impress his once estranged father, Barney asks the gang to exaggerate about their lives so he can appear to be associated with a high flying crowd. Robin runs into a guy she has a crush on.
The Perfect Cocktail
When Marshall and Barney argue over the destruction of the Arcadian Hotel, Robin and Lily try to mix the right combination of cocktails specifically formulated to create the kind of buzz that will encourage them to make up. Ted plans a romantic weekend away with Zoey - at the very place where they met - the Arcadian Hotel.
Ted begins to side with Zoey on keeping the Arcadian Hotel in place and deeming it a landmark; however, his conscience begins to get the better of him when he realizes this change of heart is more about keeping his relationship with his girlfriend than what he truly believes.
Robin and Barney bond when they intervene in Ted's relationship. Marshall and Lily watch a ticking clock as he fears that he soon will be the victim of food poisoning. Ted performs his Best Man duties at a very important wedding.
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