The famous Hale Diamond has been stolen. Then, the wallet of Mr. Gates, with $10,000 in cash in it, is taken. Then a fortune in emeralds vanishes. Commissioner Weston concludes that the thief must be "The Shadow!" The Shadow battles the invisible killer who knows his secret identity.

Secret Word - Water - Walter Muhonen & Girl from Corona / Chief Jansen & Carol Tegner / Pete de Paolo & Bank Clerk

An oriental idol promises riches and wealth in return for a murder.

Peggy Warner has been found poisoned in an alley.

Miss Brooks may have contracted the measles and she is contagious.

A madman plans to ruin the entire city...after he's shot Lamont Cranston! "I killed the Shadow"

Secret Word - Tree - Newlyweds / Barney's Beanery & Cosmetic Woman / Countess Beierholm & Janitor

The coroner's wife dies of no apparent cause, then vanishes from her grave to return to her husband.

Helen Selby has been murdered, the clue to her killer lies with the old men.

Miss Brooks has been voted "Miss Pigskin of 1950." The good news is that Bronco Dawson is going to be the coach. The bad news is that Bronco has been fired!