Klandacia, a planet orbiting a nearby star, has a technology well in advance of that on earth. A pandemic, similar to the outbreak experienced on earth, has caused the death of many Klandacians and. is a recent memory to the humanoid population of this planet. As the Klandacians have developed an economy which is cashless, it comes out of the pandemic without the economic turmoil experienced on earth as it emerges from its own pandemic. The Klandacian Supreme High Priest receives a message from God requesting that help should be sent to earth. Although the journey to earth will take many years, four Klandacian astronauts volunteer for the mission, two men and two women. On reaching earth, the astronauts are able to acclimatise to earth's culture during a short time spent with a Moravian community, learning key languages they will need communicate with the people on earth as they emerge from the pandemic. The Klandacians tour the world, providing useful advice and technology but experience one serious mishap before they are able to successfully complete their mission and return to their home planet