In vast shipyards across the globe elite engineers are joining forces to build a new breed of marine machines to do battle with the worlds roughest seas.Featuring in the series is a giant Maersk Tanker as long as 2 football pitches, a mighty Supertug with the power of 180 cars and the world's biggest jack-up drilling rig with legs towering more than 200 metres over the shipyard. Constructing these ocean giants on time and to spec are the ultimate test of team work and skill for the world's biggest ship builders.Meet the boundary-pushing crew of engineers, shipbuilders, captains and designers as they work to build, test and launch three of the world's most complex offshore assets. Working under extreme conditions, and tight deadlines, the teams toil to complete the assets and get them ready to access and transport oil.