It's Valentine's Day, and Wubbzy's mailbox is empty. Something must be wrong! It turns out the mailman is sick and can't make any deliveries, so Wubbzy, Widget, and Walden offer to deliver the cards instead. Widget builds a special valentine delivery machine and Walden plans the smartest route to deliver his cards while Wubbzy zips around town on his tooter-scooter. But will they be able to deliver all of the valentines in time?