Ace Weilong (Jim Carrey) is a pet detective who specializes in dealing with animals and makes a living by helping people find lost pets. When the football game is about to start, the mascot of the Miami Dolphins, the dolphin "Snowflake", is kidnapped. This will undoubtedly greatly affect the morale of the players. In desperation, the team's agent, Miss Matisha, found Ace Weilong to find the lost dolphin. Ace Weilong conducted a thorough investigation of the incident in his own way. Although there were constant jokes during the period and he was often obstructed by the female police officer Elus, he also found a lot of clues. Miss Matisha was gradually moved by his humor and agility and began to look at him with new eyes. Just as Ace's investigation work was slowly approaching the truth, another agent of the Dolphins, Proger, committed suicide by jumping off the building at home, and the player Malinu was kidnapped again. The suspect who was finally locked also disappeared mysteriously, and the case became even more confusing.