Brawling cable layer Steve Reardon doesn’t want to marry girlfriend Edith but he also doesn’t want her to date other men.

Betrayal and espionage abound as an experimental aircraft is readied for its maiden voyage.

When a friend of Charlie’s is found kicked to death by his own race horse on board a Honolulu-bound liner, the detective discovers foul play and uncovers an international gambling…

The story is told in flashback. Backers want a gambler to marry a rich girl for her dowry.