Flo and her friend Darla (featured in Diner Dash 2) go on a vacation. However, whilst boarding the ship, Flo’s suitcase containing her clothes accidentally falls overboard. As the pair eat at the on-board restaurant, a waiter slips, dropping his tray. Flo catches it, and the manager comments that she “looks like she’s handled a tray before”. Flo explains that she owns a restaurant along with Darla, and since the crew is short-handed, the manager asks Flo to work for the ship’s crew. In return, the manager offers to refund their tickets, as well as pay them for their services. Using the money from this offer, Flo plans to buy herself some new clothes on the on-board store. The vacation takes the pair through the cruise, riding the rails, exploring the deep, waiting tables in the sky, and into the reaches of space.
If anyone deserves a vacation, it’s Flo! But will Flo and her friend Darla find any relief on their tropical vacation? When Flo’s suitcase goes missing, she’s forced to don the apron once again to earn some emergency cash.