 Alex Ferrenby is knocked down by two men who break into the surgery and steal amphetamines. Afterwards they speed away in Greengrass  pink Cadillac. To stop the drugs from getting into circulation PC Rowan checks out the schools in the area and is surprised to learn that sergeant Blaketon has a son. But he is looking in the wrong places. Gina is on a girls  night out with her friend Debbie who is rushed to hospital after getting a couple of the pills in a disco. Kate Rowan is worried about Mavis Briggs who is pregnant and has a history of severe morning sickness and miscarriages.