The original plot of Crash Test Piggies seems to carry on here, as shown by the title.
Professor Pig's latest invention turns out to be far from relaxing when Moustache Pig gets his trotters on the plans.
Professor Pig has invented a machine that puts flowers in a pot, but it goes haywire and breaks the pot. Foreman Pig sneaks in and steals the blueprints and leaves the room with a laugh. Meanwhile, a jester is trying to entertain King Pig with a rather bad ventriloquism act. Suddenly, Foreman Pig breaks in through the door driving a machine built by the blueprints he stole, then he demonstrates the machines power by sending in three pigs that were dressed as Red, Chuck and Bomb and starts squashing the pigs that dressed as Red and Chuck. The pig dressed as Bomb is about to be squashed by the robot's hand, but the machine goes haywire and starts to spank King Pig. Foreman Pig ejects himself out of the machine, but lands in a volcano.
Meanwhile, the machine starts using King Pig as a basketball. The dressed pigs are eating popcorn, enjoying what is going on. The machine then crashes after a while, startling two cats and killing another. Professor Pig finally perfects the original machine, but Foreman Pig (who is all burned out) storms into the room, yells at Professor Pig, and slams the door, leaving the blueprint in the room. Professor Pig tries to take the blueprint, but it turns into ashes.