Rocket Kelly #5

Rocket Kelly faces a tyrannical villain who has captured him to force him to help conquer the Earth-people and control their minds using hypnotic rays. After the Earth-rabble break loose and destroy the hypnotic-ray machine, Rocket escapes and encounters various perils including underwater combat with swordfish and sea creatures, as well as hostile indigenous peoples, before ultimately attempting to tame a sea-bronc to continue his escape.