The Chase Series 4 Episode 15 Episode 15 ( Air Date 2011-09-23 ) Genre Reality category. Overview "Bradley Walsh presents as contestants - Pete, Gerry, James and Sue - pit their wits against one of the ruthless Chasers in the hope of winning a potential prize pot worth thousands of pounds. They work as a team and play strategically to answer general knowledge questions against the clock and race down the game board to the exit without being caught.".