Only the Valiant plot
"GREGORY PECK, AS CAPTAIN LANCE, WHO GAVE FORT INVINCIBLE ITS NAME!"
The respectable Captain Richard Lance and Lieutenant William Holloway are both in love with the attractive Cathy, the daughter of Captain Eversham. Fort Commander Colonel Drumm first gives Lance the dangerous order to transfer the Apache Chief Tucsos, who was arrested in Fort Invincable, to another fortress, but since Drumm's fortress is also threatened, he wants to keep the experienced Lance with him. Lance now sends Holloway out with a small escort to transfer Tucsos. The Apaches free Tucsos en route and Holloway is killed. Lance is blamed by his subordinates for getting rid of a rival. Until he receives reinforcements from 400 soldiers, Drumm instructs Lance to defend Fort Invincable again, until reinforcements arrive. Lance chooses 7 of his greatest opponents to join him on this risky mission. In addition to the Apaches, Lance now also has his men as an opponent.