Cliff Hangers was the umbrella title for three separate serials all sharing the same hour. Each episode was made up of 20 minute segments of the following serials:

STOP SUSAN WILLIAMS
Starring: Susan Anton, Ray Walston, Michael Swan, Marj Dusay and Albert Paulsen
Beautiful young newspaper photographer Susan Williams was after the men who killed her brother, a reporter for the same newspaper that she worked for. He had been on the verge of exposing a fiendish international conspiracy to set off a nuclear bomb near Camp David while the world's leadeers were attending a peace conference there. Masterminding the plot was importer Anthony Korf, whose evil henchmen, Gold Tooth and Ti, tried to kill Susan in virtually every episode.

THE SECRET EMPIRE
Starring: Geoffrey Scott, Tiger Williams, Carlene Watkins, Peter Breck, Pamela Brull and Mark Lenard
In the 1880s, Cheyenne Marshal Jim Donner was trying to track down a group of gold-shipment-stealing desperadoes when he stumbled upon the entrance to the hidden underground city of Chimera. The people of Chimera were visitors from another planet, living in futuristic splendor marred only by the dictatorial rule of the evil Thorval. Struggling to free their people from Thorval's tyrannical reign were the Partisans. Donner tried both to help the Partisans overthrow Thorval and to stop the gold robberies on the surface.

THE CURSE OF DRACULA
Starring: Michael Nouri, Stephen Johnson, Carol Baxter, Antoinette Stella, Mark Montgomery, Bever-Leigh Banfield and Louise Sorel
Count Dracula was living in present-day San Francisco and teaching a course in European History at South Bay College. One of the advantages of his teaching post was that it brought him in contact with attractive young students who could be turned into vampires. Seeking to destroy Dracula was Kurt von Helsing, grandson of Prof. von Helsing, a former nemesis of the count.