Reverend Malcolm leads a struggling inner city congregation that's getting smaller by the day, thanks to the flashy bling-laden church next door lead by the charismatic reverend Marcus. Misreading an add looking for volunteers to try an experimental new "Phat" serum, reverend Malcolm sees this as his chance to gain the mojo he needs to win back his flock. When the serum unexpectedly causes the good reverend to gain 50 pant sizes, his sermons become an unintentional comical success, filling the pews, and lighting a flame of jealousy in Reverend Marcus. You'll be preachin' to the choir when you ask "is that the same actor playing the reverend, choir, congregation members, mailman, fitness guru and Tibetan monk?”