Lieutenant Alan Barkley was tasked with assembling a team to embark on a special ground mission, deep behind enemy lines in Burma. These soldiers would face gruelling conditions, putting their skills to the test, all whilst carrying a 3.7 inch calibre howitzer up treacherous mountain peaks.

Rookie medic, Ben Ellis, did not expect to be enlisted for this task, and his fellow soldiers questioned his capabilities. But they soon found that venturing into enemy territory with a deadly weapon in tow takes courage and cunning to survive.