Unable to purchase the formula of the explosive about to be sold to the government by Mallott, the representative of a foreign power orders Le Farge and Gabrielle to obtain it. Gabrielle, posing as Le Farge's sister, easily fascinates Fanshell, Mallott's secretary. The adventuress also meets David, a fisherman, and engages him in a violent flirtation.
| Actor | Role |
|---|---|
 Roland BottomleyDavid - the Fisherman | David - the Fisherman |
 Alice HollisterGabrielle - an Adventuress | Gabrielle - an Adventuress |
| JJohn MackinLe Farge - a Foreign Spy | Le Farge - a Foreign Spy |
| JJames B. RossMallott - the Powder King | Mallott - the Powder King |
 Arthur AlbertsonFanshell - Mallott's Secretary | Fanshell - Mallott's Secretary |
| WWilliam McNultyLoup - a Foreign Diplomat | Loup - a Foreign Diplomat |
| JJohn FosterAdjutant General Foster | Adjutant General Foster |