Ep 5. Shelter Island

Ted and Stella's wedding weekend on Shelter Island is looming, and everyone is excited about it. While Lily and Marshall argue about whether or not they're invited, Robin and Barney are dealing with the aftermath of their hookup in the previous episode.

As the gang makes their way to the island, tensions rise between Robin and Barney as they try to figure out how to handle their newfound physical relationship. Meanwhile, Lily and Marshall are still arguing about the wedding guest list, and their bickering threatens to ruin everyone's good time.

Once they arrive on Shelter Island, things only get more complicated. As Ted spends time with his fiancée and her family, he starts to have doubts about whether or not Stella is really the right person for him. Meanwhile, Barney is struggling with his feelings for Robin, and he's not sure if he can handle seeing her with another man.

The tension between Barney and Robin reaches a breaking point at the rehearsal dinner, where they have a frank conversation about their feelings for each other. As they try to figure out where they stand, Lily and Marshall still can't agree on the guest list, and they end up causing a scene at the dinner.

The next day, the wedding is off to a rocky start as Ted tries to hide his doubts about Stella from everyone. But when the bride-to-be disappears, the gang has to come together to find her and determine whether or not the wedding should go on.

As they search for Stella, the gang confronts some hard truths about themselves and their relationships. Lily and Marshall finally come to a compromise about the guest list, while Barney and Robin figure out where they stand with each other. And in the end, Ted makes a decision about his future with Stella.

Overall, "Shelter Island" is a pivotal episode in the series that sets the stage for some major changes in the characters' lives. It's full of drama, humor, and heart, and it's a must-see for fans of the show.