Secret Experiment
While working in the lab, scientist Peter Brady is exposed to a radiation leak and becomes invisible. The British government wants to classify him as top secret and lock him up, but Peter escapes.
Episode 40 hr 26 min
The Locked Room
A Russian scientist's attempt to defect to the West fails and she is imprisoned at her country's English embassy. Peter decides to rescue her, partially due to her own experiments in invisibility.
Crisis in the Desert
Military intelligence asks Dr. Brady to help them rescue their top undercover agent in the Middle East. Brady and a resistance fighter must work together to breach the high-security hospital.
Behind the Mask
After Maria Constantine tricks Dr. Brady to help her when her car breaks down, she takes him to an estate owned by her father, the disfigured millionaire Raphael Constantine.
The Locked Room
A Russian scientist's attempt to defect to the West fails and she is imprisoned at her country's English embassy. Peter decides to rescue her, partially due to her own experiments in invisibility.
Picnic with Death
After a car accident, Peter's existence as the Invisible Man is revealed to the world. While trying to cope and come to terms with the newfound publicity, a neighbor girl asks him to stop a murder.
Play to Kill
Peter comes to the assistance of an actress who inadvertently ran over and killed a hobo while driving. A blackmailer saw the accident and is threatening to go public unless she pays him.
Shadow on the Screen
A woman comes to Peter asking for help in rescuing her husband, a Russian sailor who wants to defect. However, when Peter boards the ship, he realizes that it's a trap.
The Mink Coat
When Peter and his sister Diane head to the airport, they're surprised to find that everyone's luggage is being painstakingly examined. Diane is convinced that a fur coat is being used for smuggling.
Blind Justice
Peter comes to the aid of airline pilot Holt, who is framed for drug smuggling. The smugglers send a killer to Holt's home to eliminate him, and the pilot's blind wife is the only witness.
Jailbreak
Peter learns about a man who was convicted of robbery and tries to escape prison so he can prove his innocence. Intrigued, Peter breaks in and soon confirms that he is telling the truth.
Bank Raid
A clever criminal and his gang abduct Peter's niece Sally from her school. They contact Peter and his sister Diane, offering to return the girl in return for a meeting with Peter.
Odds Against Death
A gangster forces one of Peter's staff to develop a mathematical system in order to win at the roulette table. In the meantime, he holds his daughter Suzy as a hostage.
Strange Partners
The wealthy Lucian Currie has his butler steal Peter's papers, and forces the Invisible Man to kill his elderly partner by hitting him in the chest and inducing a heart attack.
