Ted tells the story of how he met the Slutty Pumpkin four years earlier on Halloween night. Ted arrives at the bar and tells Robin that he will be waiting for the ' Slutty Pumpkin', which he does every year on Halloween. Lily suggests that they go on a double date.
Robin then informs the group that she has been dating a guy named Mike for a few weeks, who the gang hasn't met yet. Barney mentions that he loves Halloween because women dress up in 'slutty' costumes, such as a slutty witch, a slutty cat, and a slutty nurse.
