Bulman and the newly-promoted Det. Sgt. Willis are assigned to the new Inner City Squad, and investigate arms dealing in London.
Bulman and Willis investigate a widespread bank fraud.
Bulman and Willis escort a villain to London for questioning, but his partner will go to any lengths to ensure his silence.
Bulman and Willis go undercover to investigate a gang who are rigging the outcome of horse races.
Bulman is assaulted by a Polish diplomat. His investigations lead him to a Polish circus, where Willis and Bennett go undercover as backpackers.
Bulman goes undercover to break a Liverpool-based drug-smuggling ring.
Bulman and Willis are drawn into the world of arms-dealing and find that a professional hit man and Special Branch are also involved.