![Yancy Derringer Season 1 Episode 23](https:/images/tv/34953/poster-180x270.jpg)
Yancy Derringer
Season 1
Ep 23. Thunder on the River
- March 12, 1959
- 25 min
The Southern Belle, a riverboat owned by the hot-headed Patricia Tappworth, is attempting to make a record run from New Orleans to St. Louis when it hits the river bank and sinks, making it the most recent victim in a suspicious string of wrecks. Yancy suspects, Dan Emerson, a Gilded Era monopolizer, is sabotaging the boats of his competition in an attempt to corner the market on river traffic.