It's a Saturday afternoon, with nothing to do. Rarity has a trip to Las Pegasus she's been planning for months, but she doesn't want to go alone. Rainbow Dash is looking to go on a road trip of debauchery with a friend, but she doesn't know where, and almost none of her friends are available. Almost. Now with the trip ready to launch, Rainbow and Rarity prepare for a weekend of bright lights, roulette tables, and winning the legendary Holy Jackpot. Except now, they also have to pay off a peeved mechanic they accidentally stick with a hefty fine. Will the deranged, dastardly duo come out of Las Pegasus as prosperous ponies, or will their other friends end up having to take a road trip themselves just to bail the two out of a Las Pegasus prison?