A former super-tanker gets a second life as the Maersk Peregrino, a floating production, storage and offloading unit anchored off Brazil's coast. The film follows the engineering behind converting a vessel built to move oil into one that processes and stores it, including the delicate job of positioning the ship over a network of subsea feeder pipes connected to offshore rigs and locking it into a fixed mooring system. Crew members walk through the mechanics of the turret mooring, the risks of working with live pipelines under a moving hull, and the daily routines of running what amounts to a small refinery bolted to a ship. Footage covers the deck machinery, control rooms, and the offshore rig infrastructure feeding the vessel, with engineers and crew explaining how a hull designed for transport becomes a stationary industrial platform. It is a close look at one solution to a specific offshore engineering problem: what to do with oil once it reaches the surface, far from any coastline.