2-1 Brothers tells the story of the Battalion that is Canadian since they plan Courcellette's struggle at WWI. Happening in real time, the movie follows Sgt. Reid as he must get his men ready for the forthcoming conflict. Not only must he prep his battalion Sgt. Reid must also take care of the daily difficulties of Life in the trenches, for example injuries to his men, supply issues, and an underage recruit who has recently been sent in to front lines.