While driving back from the movies, the gang finds a strange man in the back of the Mystery Machine. They recognize it as the ghost of Mr. Hyde who is a jewel thief. They follow him to a house where they meet a descendent of Dr. Jekyll who claims to be the ghost of Hyde, but is he telling the truth?
On their way to Pago Pago for a musical stint, Josie and her companions find themselves in troubled waters when the ship on which they are sailing is torpedoed by Captain Nemo.
The Doctor has escaped the catastrophic destruction of a parallel world. But can he stop Stahlman before he destroys this one?
The Doctor is trapped in a parallel world that is going up in flames. Can he escape in time to save Earth in his own universe?
The parallel Inferno has broken through the Earth's crust, unleashing terrible seismic forces and dooming the planet. The Doctor hopes to return and save his world. But the bestial primords are closing in...
Callan and Cross must break a Russian spy out of prison, where he has voluntarily surrendered himself to, and kill him.
In a parallel England, the Doctor tries desperately to convince his captors of the immense peril they are in. But they are convinced he is a spy. And penetration zero is getting close…
Callan is assigned to disrupt a romance between a government worker and a suspected spy. Reluctantly he delves into his bag of dirty tricks.
In this final episode of I Dream of Jeannie, Tony's cousin comes to visit and convinces Jeannie to put Tony's face on cans of chili and market them so they can supposedly become rich. The product is called "Cousin Tony's Texas Chili."
The Doctor has vanished from the Inferno project… or has he? He finds himself in the same place, but everyone has changed… and the drilling is closer to its deadly conclusion.
Strange deaths, men changing into monsters, hot green slime pouring out of the waste pipes – but Professor Stahlman is determined to press ahead with the Inferno project no matter what the cost!
Callan and Cross are assigned to protect a woman whom Callan becomes involved with.
England, the near future. UNIT is providing security and scientific support for the Stahlman project, an attempt to tap the Earth's core for energy. But things are already going wrong…
The Cannon family runs the High Chaparral Ranch in the Arizona Territory in 1870s.
The weird Dr. Atlantian rises out of the ocean near New York City in his hive-like machine, which derives its power from Lunar motion.