Issue #0 introduces the mainstays of the Ninja Garden comic, which is a satirical look at superhero comics set in a restaurant of the same name as the book's title that caters to and employs super-power beings. The events of the issue in question revolve around one of the waiters not being properly tipped by some of the local heroes and the mayhem which ensues.
This is the first issue of the series and introduces the main characters including The Manager, Red Ninja, Zeke, Short Term, Mr. Perfect, Miss Dousa, and Catfish.
A four issue Ninja Garden series is currently in the works, being available in the summer of 2008.
You can learn more about this comic at http://www.ninjagardenonline.com/