Captain Lanning and Lieutenant Osborne are stationed at an army post in the Philippines. Lanning conceives a deadly hatred toward Osborne when the latter wins Gladys, General Fields' daughter. The officers are sent to the southern end of the island with a detachment of men. After pitching camp for the night, Osborne and Lanning go for a stroll. Osborne steps into a bed of quicksand while crossing a stream. Lanning jeers at the man, who is being drawn to a horrible fate, after which he returns to camp and announces his rival's death. Bonita, a Filipino girl, hears Osborne's cries, and comes to the rescue. Some of her tribe aid her. She saves the man's life a second time, when the natives, discovering him to be a soldier, try to bolo him. Lanning returns to the post and tells of Osborne's death. Gladys is prostrated. The thought of his awful offense preys upon Lanning's mind. The man finally goes insane and rushes into the jungle. Osborne is kept prisoner by the natives. Bonita aids him and accompanies the white man in a dash for freedom. Lanning comes to the bed of quicksand where he believes Osborne to have perished. The man leaps into it. There Osborne and Bonita find him. They save him from the horrible death in the nick of time. Discovering Osborne's escape, the Filipinos pursue. Meanwhile, the shock of seeing his supposed victim overwhelms Lanning. The man gradually recovers his mind. The Filipinos come up and a desperate battle ensues. Soldiers, attracted by the firing, come to the rescue and beat the savages off. A shot strikes Bonita, killing her. Gladys, overjoyed at finding her sweetheart returned from the dead, throws herself in his arms. Knowing Lanning's remorse, Osborne takes him by the hand and forgives him.