Beneath Hill 60

Beneath Hill 60 is a 2010 Australian war film directed by Jeremy Sims credited as Jeremy Hartley Sims and written by David Roach.

As seen in flashbacks that occur throughout the film, Oliver Woodward is an Australian miner supplying copper for the war effort. He falls in love with Marjorie Waddell, a young woman ten years his junior. However, he is under constant pressure to enlist, especially from Waddells father. He has the opportunity to do so when the British Army forms the 1st Australian Tunnelling Company to supplement the Royal Engineers Woodward is commissioned to lead the unit.On the Western Front, Woodward meets Frank Tiffin, a young Australian soldier who is suffering from shell shock it is later revealed that Tiffin, being under age, was initially relegated to being a stretcher bearer, where he saw firsthand the horrors of war. Woodward reassigns Tom Dwyer and Norman Morris to relieve Tiffin. Two German tunnelers break through into the tunnel. Morris and Dwyer dispatch both of them, but Dwyer is killed when a German explosive goes off, bringing down the tunnel on top of them Morris is rescued by the other sappers. ........

Source: Wikipedia