Land of the Giants

Mark, Steve, and the women are taken prisoner by four kids who were on an under-privileged youth-flight that crashed on the planet. Paranoid from two years of being on the run (and apparently ot-nay oo-tay art-smay in the first place), they think the Spindrift crew are in league with the giants. The guys manage to break away, while one of the gang lead Valerie and Betty away.

During the escape one of the gang gets locked in a giant trap box, and the gang's leader, Nick, threatens Valerie and Betty if the others don't help him free his brother. Valerie and Betty escape too, but the Earthlings decide to help on general principles.

Meanwhile, Fitzhugh has been knocked out by eating a narcotic fruit, and is also captured. Finally Steve lets himself get captured so he and Nick can fight, distracting the giant trapper while the others slip more of the narcotic fruit into his coffee. He passes out, and they escape.

At the end the gang, on good terms with the Spindrift crew, decides to go on its own way to look for its missing members who were captured by the giants.