![The Block Signal](https://i0.wp.com/themoviedb.org/t/p/w185/cD6d5AZXnTUC7DotryXzzvfCVLS.jpg)
The Block Signal
Joe Ryan, a veteran train engineer, is demoted to a flagman position after a disastrous crash-- one caused by his cowardly and opportunistic partner. Though Ryan's failing eyesight is named as the cause of the crash, he's undeterred as he designs an automatic braking invention.
- 電影類型: 剧情, 惊悚
- 國家:
- 導演: Frank O'Connor
- 演員: Ralph Lewis, Jean Arthur, Hugh Allan, George Chesebro, Sidney Franklin, Leon Holmes, Missouri Royer,