Mid way through a blind date Ted discovers he had been fixed up with the same woman seven years earlier. The woman, Jen, realizes the same thing, but instead of giving up on the rest of the date, they decided to let it play out so they can see where it went wrong the last time. As they go about replicating their last date, Jen and Ted help each other understand what turned them off about the other person, and come to realizes that a few tweaks to the date could have ended up with them getting married. Meanwhile, Barney takes Marshall to a strip club where they find a stripper who looks almost exactly like Lily, and Marshall admits to Barney that he has problems fantasizing about anyone but Lily.