On Monday's episode of How I Met Your Mother, "Duel Citizenship," Barney attempts to make Robin more American in order to help her become a US citizen.

Meanwhile, Ted and Marshall plan a road trip to Chicago to go to their favorite pizza restaurant, while Lily decides to tag along.

Watch the following promo clip for the upcoming hilarious-looking episode:

[video url="http://www.tvfanatic.com/videos/duel-citizenship-promo/" title="Duel Citizenship Promo"] [/video]

We also go our hands on the following episode stills:

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