Meet Satan. After eons of ruling the underworld, he's sad as Hell and can't take it anymore. So why not skip town and check out "the air up there"? He can shack up with old pals Mister, Young Tim, and Aunt Mary - but we all know slacker roommates can lead to friction in the long term. Meanwhile, Jesus Christ is wrestling with his own midlife crisis, not to mention the world's biggest daddy issues. With Satan's time on earth running out, and Hell breaking loose in his absence, it's time for a road trip down below! Can our heroes save a sinner's soul without pissing off the Powers That Be?