Discovering a method of making himself invisible, scientist Daniel Westin destroys his notes and flees to avoid letti...

The Klae Corporation requests Dan's help in determining whether a wealthy recluse is still alive and planning to make...

When priceless paintings are stolen from the Capitol building in Washington, D.C., Dan and Kate are asked to infiltra...

Dan and Kate attempt to expose a phony spiritualist who has been exerting undue influence over a powerful senator.

The Westins must prevent a suspected spy from being assassinated before they find out how she has been stealing docum...

At a scientific conference in Stockholm, Dan must determine whether a former defector is sincere in his request for h...

The Westins are asked by an elderly female janitor, also employed by the KLAE Corporation, to help her son who is in ...

When the Westins are caught in a bogus traffic violation while driving through a small town, Dan decides to take on t...

The Westins conspire to help Walter's Aunt Margaret replace the money she "borrowed", from the bank where she is empl...

When one of the corpration's co-owners, Caroline Klae, is threatened and then kidnapped after she refuses protection,...

Dan must rescue the blind daughter of a an organized crime kingpin, who has been kidnapped to prevent him from testif...

An escaped mental patient holds Director Carlson hostage and demands that he be given the secret of Dan Westin's invi...

Westin and DiMaggio attempt to help an Eastern Bloc figure, in danger from his own entourage, who wants a face lift t...