A portrait of two 8-year-old-girls, Stam and Pet, both professional Muay Thai prizefighters. In small villages throughout rural Thailand, these young girls fight in small underground arenas to win prize-money to help provide for their families. After many months of rigorous training, Stam and Pet must fight each other for the 20 Kilo championship belt of Thailand and a cash prize that will change the winner's life forever.