The English managed to subvert the Western genre in a way that has seldom been seen before, and some of it, like Melmont’s Store, feels so real, that many viewers wonder if it exists in real life. This miniseries, from Amazon Prime Video and BBC One, centers on a British woman, Lady Cornelia Locke (Emily Blunt), who teams up with a Native American Ex-Pawnee Scout, Eli (Cashke Spencer) to avenge her dead son in the American Wild West. The series is a love letter to the Western films made popular in the 1940s and 1950s, but adds many new elements.

https://screenrant.com/melmonts-store-english-true-story-inspiration-ending-explained/