The Professionals S01E01 - Private Madness, Public Danger

Episode Overview

Title: Hidden Threats, Open Chaos Plot: Charles Nesbitt, a specialist in chemical warfare, poses a grave risk to London by threatening to taint the city's water supply with a deadly hallucinogenic substance. To validate his ominous warnings, he orchestrates a series of minor 'tests' aimed at alarming local officials, including the intelligence unit CI5.