Ted: You guys said I was definitely going to spend the night. Lily. Take Marshall back to New York with you. That's French for "What's with the purple?" The power of Valentine's Day. Robin: Speaking of the power of Valentine's Day...
Barney: What are you talking about? Change of plans.
Plan: A: Valentine's Day; Q: What holiday is the gang trying to finalize their plans for? A: less than 24 hours; Q: How much time do the gang have to finalize their plans for Valentine's Day? A: the prospect; Q: What does Lily face about spending Valentine's Day without Marshall? A: Robin; Q: Who spends Valentine's Day with her co-workers? A: Barney; Q: Who tries to take advantage of dateless women? Summary: The gang tries to finalize their plans for Valentine's Day with less than 24 hours to go. Lily faces the prospect of spending the day without Marshall. Robin spends the holiday with her co-workers while Barney tries to take advantage of dateless women.