The Coast team journey around the breathtaking shoreline of East Anglia. Neil Oliver explores the abandoned site of an experimental radar, built to spy deep into the Soviet Union during the Cold War, while Hermione Cockburn meets a member of a forgotten army of women who worked in a top secret facility on the Norfolk coast to intercept German radio messages during World War Two. Self-taught artist Alice Roberts tries to capture the unique beauty of Southwold which has inspired generations of painters. Mark Horton investigates the perilous state of our seaside piers and Nicholas Crane discovers how a potentially lethal combination of tides and weather can cause catastrophic floods.