Ep 7. Use a Gun, Go to Hell

In a powerful episode playing upon the easy availability of handguns, McGarrett and his Five-O unit follow the trail of pain and death left by one of the weapons, hoping to recover it before it can wreak yet more havoc. The wounding of a florist by a pistol-wielding bandit results in the first break for McGarrett in his stymied search for the assassins of an Hawaii state senator. Ballistics tests show that the politician and the florist were felled by the same gun, originally a World War II souvenir. How much more tragedy will it produce, wonders McGarrett, unless he can track it down.