Nicholas, the duplicitous ruler of the Zinba Empire, harbors ambitions of territorial expansion, aiming to transform Earth into his personal dominion. His scheme commences with the obliteration of Earth's defenses through the decimation of Orion. Concurrently, a band of young vacationers on Mars stumbles upon the devastation on Earth, awakening them to the imminent peril. Encountering the enigmatic Dr. Han and Fred within an underground cavern, the youths learn of a legendary creature, The Phoenix King, rumored to be Earth's safeguard against Nicholas. Determined to locate this immortal bird, the adventurers embark on a quest to find the fabled guardian and Earth's last hope.