Mega Machines: Sea Giants

New York is home to one of the world’s busiest container ports, and using the latest technology and cutting-edge robotics, crews race to load and unload gargantuan ships before time runs out.

The world's biggest tidal turbine is a cutting-edge machine that can revolutionize the energy industry, but first, a crew of engineers must use the latest tech to battle dangerous tides and successfully install it in the Bay of Fundy, Nova Scotia, Canada.

An expert team of heavyweight dredgers is on a mission to create the deepest port on America's east coast, and using cutting-edge technology, they dig a harbor that can house the biggest cargo ships in the world.

America's largest river is home to some of the most massive and advanced machines on the planet, and a team of expert engineers use them to secure the Mississippi levees and keep its busy boat traffic rolling.

The world's toughest naval fleet is put to the test as cutting-edge aircraft carriers, combat ships, and amphibious assault vehicles and their crews undergo challenging warfare exercises.

A team of experts races to design, assemble and ship a bucket wheel dredge.

The world's largest and most advanced cruise ship races against the clock to board thousands of passengers in Miami, and using new technology, an expert team navigates the behemoth ship through perilous waters.

The biggest, most advanced fireboats in the world carry superhero behemoths, using cutting-edge engineering and technology to keep a critical American port safe from deadly fires.

The US Coast Guard's fleet features some of the most advanced ships on the high seas, and special access to these state-of-the-art vessels reveal how cutting-edge engineering and the latest tech makes their critical work possible.

New submarine technology has pushed the boundaries of ocean exploration, and behind-the-scenes access reveals the cutting-edge technology and design that help world-class scientists explore our planet's final frontier.

The world's most powerful and cutting-edge ships command the seas thanks to hi-tech engine design; special behind-the-scenes access reveals the innovative engineering and design behind these technological marvels.

A brand-new engineering marvel commands the waters as the world's fastest ferry, a hi-tech super ship equipped with the cutting-edge technology; experts reveal this innovative vessel's hidden secrets.

The world's busiest ports are getting more perilous as container ships grow larger. Special access into the control center of a cutting-edge super port reveals the advanced technology and expert engineering required to manage today's water highways.

Cutting-edge engineering is making it possible to live on the water in ways like never before, and using innovative construction methods, these hi-tech structures are remaking cities and pushing the future of home building to new frontiers.

A brand-new offshore powerboat has been engineered to take on the fastest ships on the planet. After years of research and design, an expert team puts their cutting-edge boat to the test in the most dangerous race on water.

The newest super yachts come equipped with the most cutting-edge engineering technology on the planet, and special behind-the-scenes access aboard these futuristic vessels reveals their hidden secrets and special features.

The US Navy's newest and most cutting-edge combat ships use state-of-the-art technology and innovative propulsion systems to hit high speeds on some of the most perilous waters in the world, protecting coastlines and vital offshore infrastructure.

A fleet of cutting-edge sea machines are using the power of the oceans to revolutionize the energy industry, and the innovative engineering behind these hi-tech behemoths could change the world.

The Netherlands is home to the most advanced water defense system on the planet, protecting millions with hi-tech, fortress-like barriers; engineers show how this sophisticated water control network works as it faces its greatest challenge yet.

A fleet of ice-fighting mega machines has transformed Iceberg Alley into the world's largest frozen battlefield, where cutting-edge engineering helps neutralize swarms of deadly icebergs that threaten valuable shipping lanes and offshore exploration.

The USNS Comfort is the world's biggest hospital ship and a vital tool in New York City's fight against the COVID-19 pandemic; this hi-tech vessel helps world-class doctors and nurses bring cutting-edge medicine to hot spots all over the world.

In places where building on land is impossible, engineers build on water. Floating bridges connect communities where traditional structures cannot, but keeping them safe is a challenge. As traffic, weather and shifting water push these bridges to their limits, crews must act fast to prevent small problems from becoming major failures.

Sigurd Aase rebuilds the largest Viking ship ever attempted and sails it across the Atlantic. Battling storms, fatigue and rough seas, the crew must prove that the vessel can survive open-ocean conditions and reach North America.

At Sanmar Shipyards in Altinova, Turkiye, engineers are redefining the tugboat for a new era of global trade. As container ships grow ever larger, the team tests whether electric power can match diesel strength when guiding massive vessels through tight, busy harbors.

At the Soo Locks, the most critical link in America's industrial chain, winter closes fast. Crews battle ice, time and brutal conditions to guide the final iron ore freighters through the system, while tugs, divers and air-bubbler systems.

Across southern France, two radically different wind-powered machines chase the same obsession: speed. SailGP F50 catamarans duel at close quarters in Saint-Tropez, while the SP80 speed craft trains in Leucate to break records.

At a Lake Erie recycling yard, a fire-damaged Great Lakes freighter arrives for its final job. A family-run crew races to make the ship safe and strip it for steel, as tight margins and environmental dangers threaten every decision.