The team enter the high-stakes world of international professional poker tournaments, when Bobby Rodrigues, the favourite to win, is poisoned mid-game. As all fellow players are confined to their seats for the entire match, and no other individual allowed access to the stage during that time, suspicion soon falls upon each player. However with the entire audience watching intently, how could any of them have committed murder? A novice to poker, Jack enlists the specialist help of Dwayne, who is more than happy to step up when Florence becomes injured. With each suspect skilfully trained in the art of deception, just how is Jack going to force them to reveal their hand? Meanwhile, Florence struggles to obey doctors' orders to stay away from work and soon finds her own way to assist in the case. Elsewhere, Dwayne makes an interesting discovery whilst searching through a suspect's belongings.