Frank Castle (Tom Jane) is a retired F.B.I. agent spurred into action after the merciless slaying of his wife, father, and son. Adopting the superhero guise of The Punisher, Castle aims to wreak vengeance for his dead family by tracking down the culprits responsible for their demise. All clues point to Howard Saint (John Travolta), a ruthless businessman and nightclub owner whose son was mistakenly killed by Castle in a botched undercover operation back in his F.B.I. days.