On a train ride from hell, Jessie and Ki track a deadly duo of fake lawmen! When a duo of duplicitous criminals posing as lawmen terrorizes a trainload of passengers and attacks Ki, leaving him for dead, Jesse and Ki pick themselves up and set out to bring the fake marshals to justice.

Jessie and Ki track the bloody trail of a band of greedy gold thieves! Out tracking down a cougar who has been making meals out of Jessie's herds, the Lone Star duo picks up the scent of some gunslinging profiteers out to rape the holy Chuacas Canyon of its buried Aztec gold.

A range war is brewing—and it's about to boil over! Hot on the trail of gun thieves who intend to sell their wares to an Indian nation, Jessie and Ki find their mission complicated when Chief Running Wolf steps up his campaign to wipe out white settlers.

Jessie and Ki fight in a double threat—rustlers working on land and sea! Their prize herd stolen by a group of buccaneers, Jessie and Ki spring into action, riding south of the border with Brownsville's worst cutthroats for a deadly encounter with the rustlers.

Jessie and Ki face a band of seafaring marauders as mysterious and deadly as the ocean depths! When the Star Sarah, the proudest frigate in Jessica Starbuck's Texas Star Line, is abandoned and torched, the Lone Star duo are determined to find out what happened.

Jessie and Ki blaze a deadly path to corner a pack of purebred killers! The blackhearted boss of a ruthless stickup gang makes life difficult for Jessie and Ki when he guns down a friend of Jessie's father.

The Apaches are on the warpath, and Jessie and Ki follow their bloody trail south of the border! Cutthroat Apaches are holding an entire Mexican town hostage for money, and unfortunately, Jessie and Ki forgot to bring along their moneybags. So they'll just have to buy the villagers' freedom with the cold taste of hot lead.