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.
1955
1939
2023
1919
1986
1983
1995
1935
1997
1916
1952
1934
1913
2022
1979
1947
1915
2024
1932
