On her way into the station, Insp. Gina Gold is involved in a minor traffic accident when a white van cuts her off. When the police arrive, it is a horrified PC Gary Best who is forced to breathalyse his Inspector - when the test is postitive, Best is forced to arrest her for driving under the influence. Sgt Dale Smith, realising that Gold's condition is due to him cheating in their drinking contest conspires with Best to rig the test by using Gary's breath sample. When Gold works out what they've done, she is furious that they have implicated her in a conspiracy. DC Juliet Becker goes to the house of her friend and former lover Heather Rayner, who has left her violent husband after he raped her - but the unexpected arrival of Heather's husband sees Becker knocked unconscious and abducted.