视频简介
Suffering from mental scars, a Marine war veteran struggles with his transition back to civilian life.。Lucy Worsley travels to Russia to tell the extraordinary story of the dynasty that ruled the country for more than three centuries. It’s an epic tale that includes giant figures such as Peter the Great and Catherine the Great, the devastating struggle against Napoleon in 1812, and the shocking murders of Nicholas II and his family in 1918 which brought the dynasty to a brutal e...。It's over 500,000 square miles of rumored mysteries. In reality, the Bermuda Triangle may be filled with something even more incredible - Sharks. Marine Biologist Dr. Austin Gallagher is searching for the holy grail of shark research - the secret breeding grounds of tiger sharks, and he's hoping one special shark can lead him to it.。