It's a miserable summer anyone can remember in Paradise, Michigan. Alex and his occasional partner Leon are outside the local casino waiting to see the 4th July firework celebrations when they witness a spectacular boat crash. They drag four men from the wreck and revive them. When Alex's friend Vinnie is later beaten up by four strangers, it doesn't take Alex long to figure out who they might be. Vinnie suspects that these strangers have been preying on some of the local tribes people, pressuring them to make fraudulent claims for medicine, which the men then sell on at street value to drug addicts.