Oscar Diggs, a small-time circus illusionist and con-artist, is whisked from Kansas to the Land of Oz where the inhabitants assume he's the great wizard of prophecy, there to save Oz from the clutches of evil.
After a mobster agrees to cooperate with an FBI investigation in order to stay out of prison, he's relocated by the authorities to a life of suburban anonymity as part of a witness protection program. It's not long before a couple of his new neighbours figure out his true identity and come knocking to see if he'd be up for one more hit—suburban style.
Two warring gang families (one African-American, the other Chinese) maneuver for bragging rights to the Oakland, California, docks. Hang Sing and Trish O'Day uncover a trail of deceit that leaves most of the warring factions dead … or worse!
