By 1916 the Great War in Europe has reached a stalemate. The two massive armies have fought themselves to a standstill. Millions of lives have already been lost. Brendan Cowell leads a superb ensemble cast as mining engineer Oliver Woodward, who returns to Australia from Papua to join a secret Australian Tunnelling Company. Miners from all over the country are given just two weeks military training before being sent the Western Front. Their task is to undermine the German Lines.