In a faraway West filled with misadventures and laughter, a somewhat clumsy and scatterbrained doctor named Peter Potter becomes the center of a hilarious mix-up. Believing his life is merely a routine, Peter’s existence takes an unexpected turn when he finds himself caught in the middle of a conflict between the Native Americans and the pioneers. Following a misunderstanding, he becomes the focus of the natives' attention, who believe he is a brave hero, thanks to the false impression created by his encounter with a bold and charming woman named "Calamity Jane."
As Peter tries to survive life in the Native American camp, he gets wrapped up in a series of comedic entanglements that force him to adopt a personality he never knew he had. Meanwhile, romance begins to blossom between him and Jane, who looks beyond Peter's awkwardness and is drawn to his pure heart. At the same time, the true nature of his bravery is put to the test as his new home faces external threats, and for the first time, Peter must choose between cowardice and courage. With a comedic and charming cast, this blend of laughter, love, and doubts in the Wild West shows that sometimes, heroes are those who never imagined they could be. In the end, the struggle to protect those he loves awakens in Peter a brave spirit he never knew he possessed.