Challenge Accepted
Robin and Barney bond when they intervene in Ted's relationship, and Marshall and Lily watch a ticking clock as he fears that he soon will be the victim of food poisoning.
The Magician's Code (2)
Ted is conflicted when Victoria approaches him on her wedding day and asks him to elope. Meanwhile, Barney and Quinn are arrested by airport security while on the way to Hawaii when Barney refuses to open a box they are travelling with.
Something New
As the gang prepares to go to Robin and Barney’s wedding, Ted invites Lily to see the house he's finally finished fixing up. Meanwhile, Robin and Barney’s night of relaxation is ruined by an obnoxious couple, and Marshall takes the baby on a last-minute trip to Minnesota to see his family.
Freddy Spaghetti
When Ben prevents Leslie from holding a children’s concert, she takes matters into her own hands. Mark makes some big decisions about his life, and Andy gets some unexpected romantic attention.
Goodnight, Gracie
Everyone flies down to Florida to be with Phil after his mom's passing. Claire helps Phil with Gracie's last wish for Frank, and the kids reflect on the gifts grandma left for them. Gloria has to contend with an outstanding arrest warrant in Florida, Cam finds himself fitting right into an elderly women's group at Frank's retirement community, and Jay runs into a pivotal person from his past.
Baby on Board
Gloria's bilingualism comes in handy on Mitchell and Cameron's quest to adopt another child. Meanwhile, Jay and Manny help Lily get ready for a dance recital. Alex goes to her first prom, and Haley announces her future plans, which come as a shock to her family.
The One That Got Away
Jay wants to go fishing on his birthday, but the family insists he have a big party, leading Claire and Mitchell to get trapped in their childhood yard, Phil to encounter his college nemesis at the mall and Cameron to have trouble at the bakery.
Family Portrait
Claire painstakingly plans for a new family portrait to be taken, but it seems like everything and everybody is working against her. Gloria and Manny go with Phil and Alex to a Lakers game and end up having a very awkward moment on the jumbotron; Luke interviews Jay for a school project, and Cameron gets a gig as a wedding singer while Mitchell is home alone with Lily and a wayward pigeon.
The Roommate Transmogrification
When Bernadette receives her PhD, Wolowitz feels emasculated. Raj and Leonard swap places and Penny does something she's regrets.