The Silver Banshee has come screeching into Metropolis, and she's on a mission to steal an ancient magical book.

"The evil puppet Scarface and his wiseguys just pulled off one of the biggest heists in Gotham history. But there's a rat among the thieves, and the loose lips are helping Batman crack the case. Has the Ventriloquist betrayed his wooden creation to the Dark Knight"--Unedited summary from book.

"When Mister Mxyzptlk starts pulling dangerous pranks all over Metropolis to get into the headlines, Superman uses his ties at the Daily Planet to trick the trickster into taking a serious time-out!"--Back cover.

The Joker escapes from Arkham Asylum and tricks Batman into following him into an old warehouse. But the building has been remodeled into the Joker's fun house. Batman must outwit clown robots and escape deadly amusement rides to make sure that the Joker does not have the last laugh!

When Bizarro decides to try to make a mess of the nice, clean city of Metropolis, Superman and his cousin, Supergirl, work together to foil his plan, but not before getting a little messy themselves.

The Penguin purchases Gotham's largest media company. Meanwhile, a crime wave hits the city. Batman soon learns that these events are related. After the Dark Knight stops a crime, the Penguin's TV news channel edit the security tapes and police reports to make Batman look like a crimnal. People begin to fear the Dark Knight. If he can't prove his innocence, the hero will end up in prison, and the Penguin will fly free.