Luke, Julie, and Jason - the kid detectives - are offered undercover security work at a trading card fair. Free food comes with the task. What can be difficult about it ? But the kids are embarrassed when cards are stolen right under their noses. Who are the thieves and how are they doing it. The kid detectives will need to find the answers quickly. There is more to this assignment than hanging about waiting to eat free food. Detectives rely on getting a lucky break. The kid detectives need a lucky break. There reputation will be enhanced if they can overcome this challenge.