Outlaw Angus Morton and his gang have made a crucial mistake: they upped their crimes from robbing stagecoaches near El Paso to murdering a railroad agent and burning down a way station. Detective Calvin Carter and his partner are tasked with bringing Morton to justice.

One way or another.

When Carter arrives at Morton's last known location, he finds the town on edge. The bandit has the citizens terrified, wondering where next he'll strike. Even stranger are the rumors of a fire-breathing creature capable of utter destruction, a monster which could lay waste to the city.

As a former actor, Carter knows a tall-tale when he hears one. But he also knows a few things are not make believe:

Witnesses to the most recent attack turning up murdered.

Carter himself attacked.

And the deep, metallic churning sound of an infernal machine approaching...