Gentleman Dan Muldoon is backing Dublin Boy against Gunner Stagle for the bare-knuckle championship of the river. Before the fight, Dublin Boy proves to have a glass jaw, when flattened by Grey, thus forcing the captain to take his place in the ring. Grey triumphs and becomes ""river champion.""
| Name | Type | Role | |
|---|---|---|---|
| William Fay | Writer | ||
| Hendrik Vollaerts | Writer | ||
| John Harmon | Guest Star | ||
| Ralph Reed | Guest Star | ||
| Jack Hogan | Guest Star | ||
| Denny Miller | Guest Star | ||
| Charles Horvath | Guest Star | ||
| Slim Pickens | Guest Star | ||
| George Kennedy | Guest Star | ||
| Norma Crane | Guest Star | ||
| Dennis O'Keefe | Guest Star | ||
| William Witney | Director |