Citizens of Wasabi World are getting fatter with every Wasabi Burger they eat. Luckily, Dr. Wasabi has set up liposuction centers all around Wasabi World. It's up to the Chooks to discover what exactly is inside the burgers.

Wasabi makes plans to marry the mermaid Siren Sung (who Chuckie Chan has a crush on), and soon decides to flood Wasabi World (and rename it Wasabi Water World). Now it's up to the Chooks to stop wedding arrangements or risk swimming with the fishes.