Overview
During World War I, John Stevens invents an anti-submarine device, but the plans are stolen by two German spies, the Baron von Wiederholtz and Madame Elsa, who flee to a New York hotel. Stevens' daughter Alice pursues the spies hoping to retrieve the plans.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 21 | January 3, 1943 (46) | |
 | 30 | December 10, 1973 (85) | |
 | 59 | January 6, 1924 (65) | |
 | 36 | March 11, 1973 (91) | |
 | 26 | January 30, 1967 (75) | |
 | 63 | December 20, 1931 (77) | |
 | - | - | |
| - | - | |
| - | - | |
 | 55 | September 6, 1925 (63) |