Summary: While talking a walk in Central Park, Grace and Leo run into Katie Courick, who is filiming a mass wedding conducted by the "Today Show". Impulisively, Leo proposes to Grace, who happily accepts.

When the duo arrive back at Will and Grace's apartment, they share their news with Will, Karen, and Jack. Though Karen and Jack are thrilled, Will is less than happy that his best friend didn't think to include him in this big moment of her life. To make Will feel better, Grace and Leo hold a wedding reception, where their friends and family give toasts and discuss the surprise marriage.

All is going well until the cake cutting, where Grace and Leo realize how little they actually know about each other. They don't know each other's birthdays, favourite songs, and in the case of Grace, real names. Distraught, Grace runs out, followed by Leo, who tries to convince her that it doesn't matter how much they know about each other, as long as they love each other. Grace wishes for a sign that this was supossed to happen, and who should appear but Katie Courick.

Unfortunately, Katie has rather upsetting news: the judge who performed the mass marriage was a fraud, so none of the marriages are real. Grace takes this as a sign, and walks away. Back at the reception, Leo breaks the news to the unhappy guests, but is interrupted by Grace, who walks in singing and agrees to get married again.

Quotes
WILL: You know, I think fall is finally here. I just saw the first drunk of the season turn yellow and tumble gently to the ground.
KAREN: I tripped, okay?