Mega Machines: Sea Giants Season 2: Episode Guide & Ratings

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.

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 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 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 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.

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.

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.

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.

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.

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 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.

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 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.