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.
1916
1998
2015
1942
1920
1939
1977
2014
2005
2019
1928
1954
1918
2023
1955
1935
2008
