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.
2002
2016
2025
2000
1999
2010
1940
2012
1931
2017
1980
1993
1987
1926
2013
1953
2020
1964
