From the film's website:
BUCK, a richly textured and visually stunning film, follows Brannaman from his abusive childhood to his phenomenally successful approach to horses. A real-life “horse-whisperer”, he eschews the violence of his upbringing and teaches people to communicate with their horses through leadership and sensitivity, not punishment.
Buck possesses near magical abilities as he dramatically transforms horses – and people – with his understanding, compassion and respect. In this film, the animal-human relationship becomes a metaphor for facing the daily challenges of life. A truly American story about an unsung hero, BUCK is about an ordinary man who has made an extraordinary life despite tremendous odds. http://www.buckthefilm.com/