Superyachts are the clearest physical proof of extreme wealth, and this film looks past the marble staircases and helipads to the engineering behind them. It traces the craft back to Feadship, the Dutch builder that has spent decades shaping custom hulls for royalty and billionaires, and follows the design and construction process from naval architecture drawings to sea trials. The film also visits Triton, a manufacturer of personal submarines built to be launched from a yacht's deck, showing how owners now expect their vessels to double as private research platforms and underwater tour boats. Interviews with builders and designers cover the practical problems of the industry: stabilizing a moving structure the size of a small hotel, hiding miles of cabling behind teak paneling, and fitting a crew of dozens into a space designed to look empty. The result is less a tour of luxury than a look at the shipyards and engineers who make that luxury physically possible.