The Texas Run(1985)

A.C. Crispin

Barely escaping death from a Visitor ambush, resistance warrior Rick Hurley is rescued by Sheryl Lee Darcy and a band of Texas freedom fighters carrying vital drugs to the sick and wounded of their native state -- where the red dust toxin, once fatal to the lizard-like aliens, has lost its effect. The Visitors have placed a stranglehold on the Dallas-Fort Worth area, rounding up the terrified populace for cold storage aboard the Mother Ship. There the Texas resistance strike-and-hide guerrilla raids, aimed at the Visitors' processing centers, keep the inhuman enemy in confusion and disarray.

But when Sheryl Lee is taken prisoner, it's Rick who plans a daring rescue, with the help of wild-man rancher Charlie Scoggins, striking at the heart of the enemy stronghold, across hundreds of miles of lizard-held terrain, at the deadly, desperate end.

Set after the TV episode "Visitor's Choice".