Ever since Marshall and Lily got married, Ted feels that his "best bro" Marshall has turned from being a "me" to a "we". That's why Ted is so excited when Marshall agrees to recreate one of their crazy college road trips to Chicago's Gazola's pizza joint, which is closing. But this trip is not quite what Ted was expecting as Marshall invites Lily. As Lily's presence changes the nature of the road trip, Ted tries to regain what he wanted this trip to be. Meanwhile, Robin may be deported unless she becomes a US citizen. Robin, a patriotic Canadian, isn't sure if she wants to become an American. Barney, who doesn't understand why anyone wouldn't want to be American, helps Robin become his version of American. But when Robin's withdrawal symptoms become too much for her to handle, she falls off the wagon. This experience shows her where she really fits and where her patriotic heart lies.