Overview
Jim Cole, heir to a mining operation, takes over the mine, which is suffering from unexplained low production, and is facing a strike by the miners. Jim will soon loose the mine if production doesn't increase and the sabotage continues. Mary Norsen, office-secretary, accidentally learns of a plot by Fred Johnson to wreck the mine and force Cole to sell his coal-mine. She and her brother, Joe, join Cole in his fight to stop Johnson.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 28 | December 26, 1945 (37) | |
 | 21 | May 8, 1973 (58) | |
 | 33 | October 13, 1947 (44) | |
 | 26 | January 19, 1957 (46) | |
 | 55 | January 26, 1938 (56) | |
 | 33 | January 3, 1966 (62) | |
 | 35 | September 19, 1959 (58) | |
 | 19 | April 29, 1976 (59) | |
 | 51 | September 5, 1972 (87) | |
 | 29 | 118 |