When unrest arises among the Apache, led by Cochise (Miguel Inclan), Thursday ignores York's advice to treat the tribes with honor and to remedy problems on the reservation caused by corrupt Indian agent Silas Meacham (Grant Withers). Thursday's inability to deal with Meacham effectively, due to his rigid interpretation of Army regulations stating that Meacham is an agent of the United States government, so entitled to Army protection (despite his own personal contempt for the man), coupled with Thursday's prejudicial and arrogant ignorance regarding the Apache, drives the Indians to rebel. Eager for glory and recognition, Thursday orders his regiment into battle on Cochise's terms, a direct charge into the hills, despite York's urgent warnings that such a move would be suicidal. Thursday relieves York and orders him to stay back, replacing him with Captain Sam Collingwood (George O'Brien).