The class system is alive and well at sea, as is demonstrated in this behind-the-scenes look at those who work on luxury boats used by the fabulously rich. The upstairs and downstairs worlds collide when this young and single crew, known as "yachties," live, love, and work together on-board the luxurious, privately-owned yacht while tending to the ever-changing needs of their wealthy, demanding charter guests. While each crew member brings a different level of experience, they all share a love for this lifestyle that enables them to travel to some of the most beautiful and exotic locales in the world. Each episode features a different set of charter guests moving onto the boat from millionaires, to entertainers to hard-partying groups of well-heeled friends - who have little idea of what goes on "Below Deck"...until now.