The movie is divided into portions. The first part takes audiences on a journey through mythology as told by Dhanush’s character, Eesaa. This establishes the scene in a village where a temple that the people built but are now unable to visit has a secret that could set the oppressed free. Without directly addressing the topics of the story, Captain Miller skillfully dives into the politics underlying Hinduism and the native gods, giving the story more complexity.

The main plot of Captain Miller’s story is around Eesaa, a guilt-ridden sepoy who rebels against the British Empire. Despite his initial goal of gaining respect by enlisting in the British army, he ends up overwhelmed with remorse. Eesaa becomes a lone wolf, a traitor to his tribe and a vigilante against the British troops, as he comes to terms with his unintentional allegiance to a bigger demon. With remarkable clarity, the plot intertwines several arcs, making sure that no time is lost.

In a time full of iconic events, Captain Miller stands out for its heroism, which is present in both the gripping drama and the protagonist’s deeds. There are many scenes in the movie where the audience erupts in cheers, making it difficult to distinguish between cheers for Dhanush, Captain Miller, and the brilliant Arun Matheswaran.

With the help of cinematographer Siddhartha Nuni, Arun Matheswaran—who is widely recognized for his stunning frames and cinematography—maintains his reputation. The erratic camera movements that occur during bouts may annoy some people, but they have a purpose in illustrating how intense the fights are. The director’s typical extreme wide shots capture the expansive dry land’s magnificence, and when the hero enters center stage, the frames emanate an overwhelming sense of valor.