A very expensive new rocketship, once built for war and now rusting away, relates the story of her glory with Captain Lamb in charge, but also of treachery aboard ship, which the rocket secretly dealt with.; As a prelude to an invasion of the Earth, an infiltration rocket from a far distant world is sent to the Earth to examine, estimate, judge and report back to their leaders. But when the crew discovers something not found on their world....emotions....they decide to stay on Earth.