Fireworks changed rapidly from an innocent to a favorite in the criminal circuit. The dark side of fireworks is in the news almost daily. The police assume that the limit of 1000 attacks with heavy fireworks will easily be reached this year. How could it get so out of hand? Danny Ghosen investigates the fascination with the loudest bang, the (international) trade in illegal fireworks, and how criminals assemble and detonate heavy explosives to eliminate competitors, intimidate or take revenge.