Josh Radnor (Mercy Street)
Jason Segel (The Muppets)
Cobie Smulders (Agents of SHIELD)
Neil Patrick Harris (Starship Troopers)
Alyson Hannigan (Date Movie)
Bob Saget (Full House)
Ellen D. Williams (Bskets)
Seth Green (Family Guy)
Peter Gallagher (Ameircan Beauty)
Alexis Denisof (Angel)
Marshall Manesh (The Brink)
Ted’s new building is set to open and he invites his favorite architecture professor, Vinick, from his college days to the grand opening. The group says that Ted has put the professor in his “pit”, in that he has obsessed over him and hasn’t let him go since college. This is further confirmed when the professor declines the invite. Ted takes the group to Wesleyan, intending to unleash his wrath on Vinick. After hearing one of his inspiring lectures, Ted craves Vinick’s approval and shows him a sketch of the GNB building. Vinick is unimpressed and Ted brings a 3crD model, but Vinick views the attempt as pathetic. Ted realizes he has to move on.
Marshall and Lily explain they are in someone else’s pit. Daryl, a friend from college, became obsessed with the two, causing them to feel uncomfortable. They run into Daryl at Wesleyan, having formed a company selling hacky sacks named after the three of them. He invites them to his house; Marshall and Lily fear they will be killed, but find that Daryl’s company has become successful, and they unknowingly reject his offer to give them $100,000, claiming it was partly their idea. Daryl seems to accept that they don’t want any part of his life.
Marshall calls “Jinx” on Barney when they utter the same phrase simultaneously. Future Ted explains the group takes the game very seriously; Barney had previously broken the jinx out of mockery, but later had been hit by a bus, causing everyone to follow the rules whenever they’re jinxed. The group relishes Barney’s silence. Robin has someone in her pit, Patrice, and plans to fire her for getting together with the man she loves. She moves on and lets Patrice stay. Barney tricks Ted into saying his name by showing him a wedding ring, breaking the jinx. Barney explains that he’s serious and makes Ted promise not to tell anyone he plans to propose to Patrice.
Ted’s new building is opening that night, but he is distracted by his promise to Barney; he winds up asking Robin to be his date to the gala when he loses the nerve to tell her. When Ted meets up with Robin, he tells her. Robin claims to be fine with Barney’s plans, she admits that she has still loved him for a long time, but cannot keep chasing after Barney if he will never feel the same way about her. Finally letting go of his pursuit of her, Ted takes Robin to the WWN building where Barney intends to propose to Patrice. Marshall and Lily are excited to have their first evening away from baby Marvin, thanks to her father Mickey taking care of him. Marshall hears about Barney and the two end up missing Marvin. They decide they are more content spending the night back home with him.
When Robin heads to the roof of the building, she sees no sign of Patrice. Instead she finds a page from Barney’s Playbook, titled “The Robin”. Barney had a long plan to get back together with Robin, which started with proclaiming his love for Robin and intentionally getting shot down. He went to Patrice for help and pretended to date her so that Robin would realize her feelings for him. When Barney arrives, Robin feels that she can’t trust Barney because of how he manipulated her to get to this moment. He still proclaims his love for her and proposes; Robin accepts, and they embrace and kiss. At the gala, a GNB executive proposes a toast to Ted. While Robin, Barney, Marshall, and Lily are shown happily in their respective couplings, Ted stares out from the GNB building alone.
The second Part is one of the best episodes of the season, and a lovely ending. A great final Christmas on HIMYM.