The start of the third season starts off after six years and at the start of World War II. Austin is an MP and working for Neville Chamberlain.
Bradley has a inflatable new air raid shelter he needs to sell to the goverment.
A coffin sales slump affects Hardacre Munitions.
Plans are made, deals are struck, and a midget submarine is tested out.
Austin and Isobel are five fathoms under the sea with George Fairchild.
Bradley plays cricket for the future of his empire.