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The Mystery Squadron (1933)

Passed | | Action, Adventure | 22 December 1933 (USA)
Hank Davis, foreman on a huge dam project, enlists the aid of his two flyer friends when a sinister figure known as The Black Ace leads his Mystery Squadron of masked pilots in an attempt to destroy the dam.


(story) (as Sherman Lowe), (story) | 4 more credits »




Complete credited cast:
Bill 'Jellybean' Cook (as 'Big Boy' Williams)
Purnell Pratt ...
Dr. Flint
Stephen Gray
Sheriff [Chs. 2-3, 12]
Tom - Dam Foreman
Andrew Martin (as Edward Peil)
Henchman Carter
Roberts (a Mystery Flyer)


Chapter 1, "The Black Ace" opens with dam-project foreman Hank Davis hiring two stunt flyers he once flew with, Fred Cromell and Bill "Jellybean" Cook, to protect the dam from the air raids by a group known as the Mystery Squadron, under the leadership of the mysterious Black Ace. Each attack is preceded by the arrival of a miniature airplane carrying a warning that the Mystery Squadron is about to attack. This makes the workers somewhat disturbed and distressed to the point that they mistake Fred and Bill for members of the criminal air armada. The workers form a vigilante lynch mob from which Fred and Bill must escape and continue their 12-chapter search to unmask The Black Ace. Those in a hurry can flash-forward to the ending of chapters 4-6-8 and 12, as they are all "cheater chapters" comprised primarily of various players recapping, via flashback footage, what has transpired in preceding chapters.Mascot and Republic led the serial world in the use of cheater chapters, but they ... Written by Les Adams <longhorn1939@suddenlink.net>

Plot Summary | Add Synopsis


Action | Adventure






Release Date:

22 December 1933 (USA)  »

Also Known As:

A Esquadrilha Misteriosa  »

Company Credits

Production Co:

Show detailed on  »

Technical Specs


(12 chapters)

Sound Mix:

Aspect Ratio:

1.37 : 1
See  »

Did You Know?


It is possible that the man portraying the Black Ace in full costume is not Jack Mulhall but actually a stuntman. See more »


Good guys Bill and Davis are apparently clubbed unconscious by an unseen hand while exploring the Mystery Squadron's secret cave. Initially Davis lies to the right of Bill, but later he's seen laying on the left. See more »

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User Reviews

Wednesday oater
6 March 2006 | by (Canada) – See all my reviews

I remember this movie serial as a boy in the thirties,we would ask our mother's for a penny on a Wednesday after school,and line up at the local movie house along with hundreds of kids..mostly boys,it always promised fast action,the Mystery Squadron who had their hideout in a mountain cave,the Black Ace the leader always seemed as though he would never would be revealed,would provide the bad deeds,as the action heated up thousands of young feet would stomp on the balcony floor,it was a wonder that it never collapsed.it would build to a crescendo,THEN it would stop suddenly,everyone would hold their breath as the hero would be put in seemingly inescapable peril,NEXT WEEK...see the next thrilling chapter,we would pile outside still gripped in the spell and discus with actions what had taken place,we would then speculate as to how he was going to get out of this latest fix,Bob Steele,Tom Mix,Hoot Gibson,Buck Jones,Ken Maynard,our heroes,who never kissed a girl,in our games no one wanted to play the Black Ace.Happy innocent days.

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