Danny Forster travels from a shipyard in Turku, Finland to the busy port cities of Florida to track how the world's largest cruise ships get built and put to sea. He walks the dry docks where hull sections the size of city blocks are welded together, talks with the engineers solving the physics of keeping a seventeen-story vessel stable in open water, and follows the outfitting process that turns a steel shell into a floating resort with theaters, pools, and thousands of cabins. The film breaks down the logistics problem at the heart of the project: coordinating thousands of workers and millions of parts on a schedule tight enough to hit a launch date. Forster's hands-on approach puts him inside ballast systems, on top of the bridge, and alongside the welders and crane operators actually doing the work. The result is a plain, detailed account of an industrial process most passengers never think about once they're standing on the pool deck.