On Phoenix Island, Doc Savage is a
prisoner of John Sunlight. Elsewhere, the escaping Pat Savage and
Amelia Earhart link up with aides Monk, Johnny, and Ham as Renny and
Long Tom arrive at the island by sub. Sunlight tells Doc of his
latest plan for world peace through calamity, using Doc's Superior
Wave Modulator to create earthquakes and volcanoes along the “Ring
of Fire.” The villain shows his plane, the Firebird, outfitted with
the deadly device and ready to go destroy San Francisco. The Japanese
Vice-Admiral, Matsui, balks at such a dishonorable tactic of war and
intends to leave; his aide Captain Osato shoots him down and agrees
to pilot the Firebird to America. Doc points out that both Sunlight
and Osato are likely to betray one another and Osato lunges at Doc
with a sword. Doc fights back, a gun is accidentally fired, Pat,
Amelia, and the aides join in. Osato, however, leaps aboard the
Firebird and takes off. Amelia Earhart volunteers to chase him in her
Electra—even though without weapons it would be a suicide mission.
There is a tearful parting with Pat and she takes off....