 Why were they getting the jeeps out?
Earth had ordered him to detour here, after leaving his load of deep-sleep stored colonists on Official World 71, to check on any sign of Hennessy. One, at the front, was stuttering into life, and Gwayne dashed for it as the exit port slid back. At a gesture, the jeep rolled down the ramp, grinding its gears into second as it picked up speed. Another jeep had drawn up, and men were examining the cadets. The two were loaded onto a jeep while men helped Barker and Gwayne stow the bound monster on another before heading back. We've scoured this planet by infra-red, and there was no sign of native villages or culture.
 to go on an urgent rescue mission
 to tour the planet  to attack the natives  to find the lost crew  to go on an urgent rescue mission