While some Bigfoot movies are meant to be scary and others playful and innocent, Letters From the Big Man conveys a much different message, that of protecting the world around us along with those who inhabit it. In the film, lead character Sarah Smith (Lily Rabe) is researching the impact of a recent wildfire on the water supply in the southern Oregon wilderness. As she ventures deeper into the forests, she senses an unusual presence surrounding her, only to discover that it is Sasquatch. Upon finding out that Sasquatch is not as harmful as the legend says, Smith tries her best to protect him from governmental forces that seek to hurt him.