Video : W3 Restoration & St James Tunnels

Venture deep below one of Sydney's oldest subway stations, to reveal a secret that sheds light on the city’s wartime history, and at Central, Duty Manager Buck has the granddaddy of all invasions on his hands. Today is the day of the Premier's Gala Concert - a hugely popular show for senior citizens. With a growing crowd of impatient senior citizens to appease, he needs to come up with a Plan B, fast.