Abducted by Humans

The small group of humans who had once been abducted by aliens now have a new job. They are employed by the aliens to abduct different alien species. All for the purpose of medical testing to ensure the other species are biologically compatible. Along with a couple of their alien friends, they are assigned a different task and sent to Earth. Not to abduct humans but to rescue some stranded aliens in need of medical care. What should be a routine mission encounters a cascade of problems. Now they must abduct (rescue) a wounded alien from a hospital teeming with heavily armed soldiers. They are now unable to engage the drive and leave the solar system. They figure that a safe place to land while they wait for the drive to be usable is on the moon. Only to discover that it is not nearly as lifeless as it is supposed to be. That something from Earth's ancient history never went away… It just hid…