When Mack's got a job to do nothing can stop him. He's as big as a house and as mean as a bull elephant. Gunfire can't break his concentration, and a bus can't knock him off course. That's how you've gotta be to be a Body Bagger. But now that Panda's on the scene and in his life for the first time since she was a baby, Mack's been thrown for a loop. And we're only getting started…