Law-enforcement officers are being assasinated by a brutal, invisible killing machine. Coast-to-coast, this operation seems efficient - and untouchable. Mack Bolan goes undercover with the Houston PD to penetrate the heart of this evil.

The trail leads to misguided cops, psychos for hire and a U.S. senator drunk on power. Striking fear into the American psyche could propel him to the helm of a Gestapo-like federal police force - complete with a one-way ticket to the Oval Office.

Bolan's agenda is clear: track down those responsible and make them pay - in blood.

It's time for justice. Executioner-style.