The defenders investigate the tragic death of a seven-year-old girl when the bouncy castle she was playing on was swept away by a gust of wind. And they enlist the help of football superstar Wayne Rooney as they chase down a couple making a fortune out of fake football memorabilia.

The defenders crackdown on dealers selling dangerous bodybuilding drugs online. Plus they are on the trail of travel agents conning families out of thousands of pounds. And they take action against a golf club preparing food in filthy conditions.