At sea - the navy's first off-shore radar station takes up its vigil. A huge platform atop pilings anchored in the ocean floor, it carries a complex array of radar equipment to guard the water approach to the nation's shores-and it boasts all the facilities to make it a home for its crew of technicians. The first in a coastal chain of sea sentinels. Establishing shot - Off shore radar station in the Atlantic Ocean. MCUS / Overhead - Battleship. MLS - Boat with crew. CUS - Entire boat is lifter out of the water, crew and supplies. MLS - Boat 'cutter' dangling from a wire. MLS - Boat 'cutter' being lowered on to the radar station. MCUS - Universal camera man taking pictures. CUS - Men inside the radar station. LS - Planes in the air, show up as blips on the radar screen. CUS - Over the shoulder, man sitting and watching the radar screen. Panning shot - Of the Sentinel.