The Joker and his gang set out to steal some valuable paintings by the late Thaddeus Wilde, but they find competition by the Royal Flush Gang, who also want to steal the paintings. According to legend, Wilde hid the secret location of his massive fortune in all his paintings and the only way to find the money was to gather all the paintings and find the secret message in each one of the art pieces.

Joker impersonates Art Wilde, Thaddeus’ last living descendant, and gets easy access to the paintings, much to the Royal Flush Gang’s frustration. In the eventual confrontation between Joker, the RFG and the Police, Joker manages to defeat the Gang all by himself allowing the police to arrest them and giving himself the chance to escape with the money.

During his getaway, Joker confesses to his gang that the man he murdered before their whole caper started was the real Art Wilde and that he had located and taken the money, which made it much easier for Joker to steal the loot.