Mission to Jandor

Suddenly and without warning, the delicate balance of oxygen and carbon dioxide in Earth's atmosphere becomes disturbed, and oxygen becomes scarcer and scarcer. Despite the efforts of Earth's best scientists, the oxygen is projected to be depleted in less than 30 days. Rhom suggests that the oxygen might be replenished using a flower that grows on the planet Jandor, so Johnny goes on a mission to retrieve the flower.