From deep-sea danger to mega holiday cruises, helping rivers flow and harvesting power, this program goes deep, unlocking the ultimate challenges of our water planet.

Year 1944. Shortly before the start of the Crimean Offensive, the ships of the Soviet Black Sea Fleet and the Azov Naval Flotilla are in serious danger: German underwater commandos are preparing a large-scale operation to destroy the main combat units of the Soviet fleet in ports and roads. Aware of the seriousness of the threat, the Soviet command is developing an operation to detect and destroy the main base of the German underwater saboteurs.

Sea Patrol is an Australian television drama set on board HMAS Hammersley, a fictional patrol boat of the Royal Australian Navy. The series focuses on the ship and the lives of its crew members.