With Klein's help, Hayward tries to set up a sting to catch Raven in the act, by offering to sell him the missing bag of heroin. They decide to meet in a car park, and Hayward, carrying a bag full of baking soda, is surprised when the tables are turned on him and Raven arrests him for possession. Klein's doubts about an unstable Hayward seem to be justified when his friend puts his life in the hands of Raven, and the undercover cop begins to show his unconventional methods. Meanwhile, back at the station, suspicions begin to grow about Hayward's innocence, and the relief are flabbergasted when they discover that Hayward has been arrested for possession with intent to supply. (thetvdb.com)