Briggs and Louis are caught in a web of intrigue when they act as bait for a "black widow" killer who seeks her victims through personal ads. Frank Windsor, Diane Keen. Briggs: Robert Powell. Louis: Jasper Carrott.
Briggs and Louis draw their own conclusions when they are transferred to Scotland Yard's low-crime "fine-arts" squad shortly after a new incentive plan is introduced in their department. Briggs: Robert Powell. Louis: Jasper Carrott. Cottam: George Sewell.
Superintendent Cottam uses Louis and Briggs in a plan to capture an escaped criminal (Mike Reid) who may be visiting Gibraltar, where the duo are vacationing. Jennie: Fiona Gillies. Cottam: George Sewell. Louis: Jasper Carrott. Briggs: Robert Powell.