The pair from My Robot Buddy and C.O.L.A.R., Jack Jameson and his robot twin Danny II, are off on a dangerous mission when robot-maker Dr. Atkins sends them into space to find out why evil Dr. Otto Drago, Atkins' former assistant, is robotnapping the boy and girl robots on C.O.L.A.R. According to C.O.L.A.R. robot Carl's computer, the plan has a 25 percent chance of success and Jack a 10 percent chance of surviving; but one doesn't question Dr. Atkins' ethics. Soon Jack, impersonating Danny, is whisked off to Drago's Omego Station, in moon orbit, and ordered into a pool to arm the last of five nuclear bombs with which Drago plans to explode the universe. The robots he's been kidnapping to do this work last two weeks in the pool, but humans would be done-for within ten seconds. So there is Jack on the edge of the pool while the ship of boy and girl robots that has followed him tries to find the code to enter the station. Just in time the light fails, the ship gets in, Jack and Danny switch places, and with a little more trickery they have Drago himself in the pool, disintegrating before their eyes. Slote's robots seem to get more and more human and he has dropped any references to their ""slave"" status. Kids who can accept a compassionate girl robot programmed for goose pimples and a boy robot whose eyes go lifeless as he dies will find the story capably programmed.