Major Jones and Specialist Smith are back for more military tickling hi-jinks. After their run in with the beautiful Russian spy, they are transferred to a covert unit that is rooting out subversives. They have captured a neo-hippi chick and are questioning her about her "gang." She refuses to answer, so they use their tactile ways to make her voluble. Soon, the poor hippi-girl is laughing herself silly. The two military girls are ruthless, but she still won't talk. They take a break, and then the hippi-girl acts. Her capture was simply a ploy to get access to the military's records. She has slipped in a small tank of nitrous oxide, and has turned the gas on, letting the two soldier girls get a good dose. Soon, both are laughing and dancing around, once again the victims of happy gas. They can't seem to keep their hands off one another, and the hippi-chick joins in with them, until the two girls pass out, unable to handle the gas like the hippi girl. When they wake up, they are now at her hands, and it's her turn to use some tickling to make them talk.