Batman and the super-gun-for-hire named Ballistic join forces to unearth a mysterious box buried under tons of rubble, while trying to evade armies of thugs who plan to kill them before they learn what the box truly contains.
Ballistic arrives at an abandoned warehouse in Oakland, California to discuss a job. He's hired to track down and retrieve a valise containing "evidence" from a fallen building in Gotham. Detecting a hint of suspicion, Ballistic leaves but warns his employers about the contents of the case.
In the ruins of Gotham, a lone guardsman is separated from his squad. Unknown to him, he's being watched by hired goons and mistakenly identify him as Ballistic. He's caught surprised as they open fire. Elsewhere, Batman hears his calls for help and soon makes his way to the rescue.
Just as he's surrounded, the hired goons fall one by one. It turns out Ballistic has arrived in Gotham. After getting reacquainted, they're soon under attack again. They team up against them and soon subdues all of them. Two of the goons are identified as members of the Bressi mob.
With the path to the building cleared, they make their way towards the ruins to retrieve the "evidence." They the valise and open it to discover drugs worth millions. Ballistic destroys it and sets out for California to investigate the people who hired him.