The annual Cobra Gold joint military operation arrives in Pattaya dumping thousands of US naval and marine personnel on the city. Russian Mafia and local Chinese-Thai gangsters decide this is a good time to rob a warehouse filled with war weapons. Duvel, a retired American, a caretaker for his aged Thai stepmother, also looks over the well-being of foreign expats as a member of the Pattaya Foreign Volunteer Police. Duvel, who leads a US Navy shore patrol down Walking Street, becomes entangled in the lives of criminals planning a warehouse heist. Meanwhile, Duvel's mother, with the assistance of a macaw and a Moscow escort worker, slowly unravels the ancient secret formula of hell beer. As the double-crosses multiply, the fate of the heist and hell beer formula is in the hands of the winner of a Pattaya katoey beauty pageant.