An amusement park owned by a retired Marine colonel is being repeatedly vandalized so the manager hires the Simons to work undercover but the more they learn about the vandal, the more they question who the real villian is.

AJ is horrified to find almost $9,000 charged to his credit card without his knowledge. Rick is innocent this time and AJ goes to the bank to demand it be taken off his card. To his surprise, the person he starts complaining to bursts into tears. Instantly repentant, AJ takes the lady out to lunch when her stern boss tells her she's holding up the other employee lunches. While eating, the lady, Marion, tells AJ that this is the ninth time someone's credit card has been charged fraudulently and that her boss had threatened to fire her if it happened again. She loses track of time and returns to work late. When her boss comes to yell at her for being late, he surmises the fraud has happened again and proclaims tomorrow will be her last day working there.

AJ is smitten by Marion and decides to investigate what's going on with Rick. They get a lead that takes them to a warehouse that is full of goods bought with stolen credit card money. The brothers see someone and split up to investigat