Watch 123Movies. Buffalo Girls tells the story of two 8-year-old-girls, Stam and Pet, both professional Muay Thai prizefighters. Set in small villages throughout rural Thailand, the film chronicles these young girls' emotional and sometimes heartbreaking journey as they fight in small underground arenas to win prize-money to help provide for their families. After many months of rigorous training and a long schedule of fights, Stam and Pet fight each other for the 20 Kilo championship belt of Thailand and a cash prize that will change the winner's life forever.