Recruitment and promotion film depicting the U.S. Navy at the height of World War I. The film was reviewed at twelve reels in January 1918 and at eight reels in June 1918. Some scenes were shot at the Naval Academy in Annapolis, Maryland. Prizma, Inc. produced films using a two-color filter system. Reviews stated that the pictures were "photographed and projected in natural colors." According to a news item, a private showing of this film was arranged for President Wilson and members of his cabinet at the White House.

Trouble is brewing in the banana republic of Bianco for both His Excellency, El Presidente, and the British Consul, Brant. Rebels, led by Diego De Costa, the trusted "Minister of the Marines and the Customs" and Lieutenant Enricquo, the gunnery officer of the small republic's one battleship, have taken over the battleship, and the town. Most of the British citizens have taken refuge at the Consulate or have been evacuated to the small cruiser in Bianco's port, the "H. M. S. Audacious." But there are two major issues; the Consul's daughter, Pamela, and Canadian Lieutenant Bill Armstrong have been kidnapped by the rebels and now held hostage on the battleship "El Mirante," and El Presidente was visiting the consulate when the war broke out and is now under the protective custody of the British Empire.

Two bounty hunters are in pursuit of "El Indio," one of the most wanted fugitives in the western territories, and his gang.

Macho Lawrence 'Larry' Hammer and frailer Dean Mazzoli initially rival as U.S. Navy SEAL trainees, but become buddies in instructor chief petty officer Bosco's merciless training class. The friends date two girls, but both love Barbara, who chooses to marry Larry, as ideal father for her pre-teen son. After graduation from Basic UDT/SEAL training, they choose opposite oceans for further training. However Sadam Husein's invasion of Kuwait gets both mobilized in the same unit, with Bosco, who gets captured and tortured. Dean learns Barbara has left adulterer Larry. They mount a rescue together, taking risks even on their own side.