David Phillips (Patrick Macnee) is running down the darkened streets of London's Limehouse district, pursued by two men with guns. He finds a public phone and puts a call through to Dick Barton (Don Stannard), but before he can report, a shot rings out. Barton must piece together what Phillips found out that got him killed. Phillips had been assigned to protect Professor Mitchell (Percy Walsh) and his new development, a ray capable of exploding any unstable element aboard an aircraft in flight. Mitchell has been targeted for kidnapping by Serge Volkoff (Meinhart Maur), a foreign agent from Eastern Europe, as part of a larger, much more sinister plot to destroy England and cripple Western Europe. Complicating matters further is that Mitchell's daughter (Joyce Linden) has also been kidnapped, and Barton must contend with Volkoff's crafty female companion Anna (Tamara Desni).
Special Agent Dick Barton uncovers a ring of international psychopathic criminals with plans to dominate the world using a terrifying weapon of mass destruction.
Melodrama set in Victorian Brighton. Scheming pub landlady uses the timorous son of a domineering pharmacist to assist in the poisoning of her drunkard husband. (The title is from the way pharmacists used to wrap parcels containing poison).
Timid Don Chicago yearns to follow in the footsteps of his gangster mother, but is forced by the Mulligan Gang to leave America. In England, he tangles with a British police officer and high society.
