Ousama Game The Animation (2017)

S1E38 The Monty Britton Story

With their water supply dwindling, Flint sets out to find more. After discovering that three water holes are either dry or contaminated, he realizes that Fort Paiute might be their last chance. However, he must return to the wagon train on foot, and the only other man familiar with the route is suspected of being a deserter.