Ted wants to go on a date without any internet background research. Marshall and Lily want to go into a delivery without any gender knowledge. Both get disrupted by Barney.

Marshall pushed his boss (Martin Short) to fight harder for their cause. Robin and Kevin (Kal Penn) move from therapy to dating. Ted has a disastrous field trip experience with his class. Barney mistakes Nora for being too old for his tastes. All bad story lines, but none as bad as Lily's insistance that everyone has to speak with an air of positivity around her because she's pregnant.

Robin tells a therapist how the blossoming Barney/Nora relationship drove her to assault a stranger as Ted inserts himself into Marshall and Lily's pregnancy.

Barney bets Marshall and Lily that he can pull off all the fancy Hibachi Restaurant moves in exchange for a look and touch of Lily's goodies. Ted recaps his evening with Victoria.

Marshall tries to get an explicit video of him on the Internet removed so his potential employer does not find it, we also learn about Edward 40 Hands; Ted tries to decide whom to take to a ball, with a very special return appearance; Barney continues trying to court Nora.

The whole gang heads to Cleveland for Punchy's wedding where the crowd eagerly anticipates Ted's emotional toast. Lily tries to keep her pregnancy a secret and Robin wonders if she's really done with Barney.

Barney and Ted battle to push the button to blow up the Arcadian; Barney and Robin battle against Ted reuniting with Zoey; Marshall battles against and anticipated stomach poisoning and we get some good dramatic news at the end.

The gang are all involved in the same story, whereby Barney convinces Ted and Marshall to back GNB in the Arcadian battle which ultimately ends Ted and Zoey's relationship.

As Marshall decides to join the "Save the Arcadian" movement as their lawyer, the gang starts to fall apart. The ladies try to mend fences between Barney and Marshall by serving them specific beverages to alter their moods. Ted forces Zoey to stay the night at the Arcadian to dampen her enthusiasm, where they meet the Cockamouse and his/her family.

Barney takes his dad, Jerry, out on the town with his friends and the new personalities he assigns them. Robin runs into an old crush at a bar, leading us to the origin story of the Red Cowboy Boots.

Marshall quits his GNB job to intern for the NRDC with Lily's full and eventually waning support. Ted and Zoey show no support on anything. Barney plays the long-con to get revenge on Marshall. Robin introduces the concept of graduation goggles.

We finally meet Barney's real dad who ends up a disappointment to Barney both in style and absenteeism. We learn that everyone in the gang has a major blindspot in their knowledge and skills.

After Marvin's heart attack, everyone's worried about the health of their heart. Barney's worried that he has one as he navigates his feelings for Nora. Robin dates a dog in human form.

Ted is faced with the possibility that he's the bad guy in the story of him and Zoey after spending time with the Captain. Barney wrestles with his feelings for Nora. Marshall won't throw one at Lily until he solves the world pollution crisis.

Ted hesitantly moves forward into a relationship with Zoey. Marshall regresses into a helpless child in Minnesota. Barney tries to score with desperate women the night before Valentines Day, but instead ends up falling for Robin's workfriend Nora. Oh, and we meet Nora for the first time.

A story surrounding a Katie Perry cameo has the gang playing telephone to catch Marshall (in MN) up on Ted's suddenly convenient feelings for Zoey.

In a very special HIMYM, we attend Marvin Eriksen's funeral and watch Marshall struggle to discover his father's last words and whether they were suitable. The rest of the gang supports him in their own way.

A two-hander whereby Marshall and Lily are dealing with potential infertility and Barny doppelgänger; Ted is helping Robin deal with Sandy problems at her new job. And of course, the worst news and most emotional moment in the entire series.

Everyone's life goal changes with the alternating news about the Erikson's maternity status.....except Ted who is too occupied making a christmas themed movie snack and crushing the details of Punchy's wedding plans.

Tune in to hear Steve and Jen debate whether this episode is horrible or just ok. Ted considers his feelings for Zoey as The Captain acts very murdery. Marshall and Robin go out to dinner to give their characters something to do. Ted has trouble recapping the Barney and Lily story. And of course there's a Mermaid Theory.

The Curse of the Blitz is passed from character to character as the gang tries to carry out Ted's Thanksgiving, with interference from Zoey.

It's Robin Sparkles III Ya'lllllllll!!!! Barney unearths and shares an old Canadian kids show Robin starred in. Lily learns Robin had a best friend from those years with whom she grew apart when the friend had a baby. Now that Lily won't stop droning on about trying to have a baby, her friendship is strained with Robin and she fears the worst. And finally, Punchy in Times Square!!!!!

A night of contests: Ted versus Zoey regarding the new GNB building, College Marshall versus Corporate Marshall in Lily's most annoying turn, Barney versus Robin in Museum hi-jinx. We also meet The Captain for the first time and Barney finds out the real identity of his father.

Ted has to win back his class from Zoey. Marshall wrestles with the decision of whether to keep Randy (Will Forte) to save his conscience, or fire him which will let him pursue his hopmeister dreams. Both Will Forte and Bob Odenkirk in the same episode!!!