Follows businessman Peter Robbins' quest to emulate Jules Verne's Captain Nemo and build his own submarine with a panoramic view. Shows how he and his helpers experience challenges, setbacks, and triumphs as they build their submarine without the resources of a big shipyard and using only scavenged or off-the-shelf parts. Shares the thrill of the sub's maiden voyage, an expedition to the depths of the English channel to find the sunken remains of...

They are among the most powerful and deadly war machines ever built, and yet they are chillingly vulnerable to fickle fate, human error and the crushing, unforgiving waters of the sea. Tells the stories of four submarine disasters, including the USS Squalus and the story of the disabled nuclear-powered Soviet K-19.

"Chris and Martin Kratt are brothers who explore the wild throughout the world to learn more about animals and share conservation information. They have three friends who travel in the Tortuga HQ with them named Aviva, Koki and Jimmy Z. The brothers have creature power suits that allow them to experience what it's like to be the animals they find. The team helps them by creating power suit creature disks for each animal they study. They also bring...

Discover the secrets of the Confederate hand-powered submarine, the H.L. Hunley, as researchers raise it and open it for the first time in more than a century.