The film tells a true story that happened during the First World War. In June 1914, when the Sarajevo Incident, the fuse of the war, officially broke out, the Allied Powers composed of the German Empire and the Austro-Hungarian Empire and the Allied Powers composed of Britain, France, Italy, Russia and other countries quickly formed the Eastern Front, Western Front and Southern Front. Three main fronts. Among them, Britain, France, and Belgium fought the Western Front the most tragic, and the background of the film took place here.
On June 17, 1917, on the Western Front, the German army strictly guarded the Belgian High Underground No. 60. A 19-minute blast created the world’s largest man-made blast in history. From London to Dublin, everyone felt this shocking shock. The underground hero of this blasting is Australia's first tunnel corps. Oliver Woodward, who led the team at the time, was awarded the rank of major general in the field army for his outstanding contributions, becoming one of only four Australians to be awarded this honor. However, after returning to their hometown, the survivors of this group of underground warriors buried this past in their hearts and never mentioned it in their entire lives.
After a lapse of 90 years, the film’s screenwriter David Rocky and director Jeremy Sims occasionally found the team leader at the time, the soul of the film, Oliver Woodward’s war memory diary, and consulted a large number of battlefield materials. , Completed the creation of the film
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