Otherwise known as 'Gas! -Or- It Became Necessary to Destroy the World in Order to Save It.' This was once another fun-filled apocalyptic film of the Seventies... but instead of nuclear war, overpopulation, or apes seizing control of the world, the source of it this time is a biological chemical agent (aka Gas), which was accidentally released in the world. Anyone over 25 ends up getting killed (imagine if the guy's at Logan's Run did this instead of those damn crystals in the hand, would've eliminated a lot of this 'runner' nonsense, hmm?), and as a result a bunch of young people wind up ruling the world.

Well, more or less, and what ends up in a wild ride between two main characters. Basically they wind up on a journey, meeting bizarre people along the way. Cindy Williams (aka Shirley Feeney) and Ben Vereen also guest star. One hilarious moment is a town which is ruled by a football team (no, really).

So why is this movie a gas for RiffTrax to riff may you inquire, as you may:

(1) The infinite music score when the main characters go on their road trip, apparently this film has a song for practically everything.

(2) The funniest moment come with Cindy Williams as a pregnant woman running a music store as well as her boyfriend Ben Vereen who plays, Carlos, who is a bit of a military enthusiast.

(3) The plethora of characters these guys encounter along the way as they travel across the country to find out what they'll find in this new mixed up world. Me, hoping for those Zombies out in Texas where apparently Night of the Living Dead took place. Seriously this is one post-apocalyptic film which makes enough sense as Fun in Balloonland.

For instance, one gunfight scene has everyone 'shooting' their weapons not with bullets, but with people shouting out classic authors, actors and writers at one another. Which end up with our hero yelling out 'John Wayne' to destroy some bandits.

Overall, this is one American International (not sure how that works) flick RiffTrax should not overlook, because it really is a Gas-s-s-s.

Here's a link to it as well as a pic: https://www.youtube.com/watch?v=DdVHWb0inos