Thriller based on the true story of Michael Larson, an unemployed ice cream truck driver who appeared on the 1980s game show Press Your Luck. He secretly memorized the patterns on the game board, allowing him to avoid the "Whammy" spaces and win a record-breaking amount of money. His uncanny winning streak sparks suspicion and investigation from the show's executives, leading to a tense showdown as they try to uncover his secret.