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.

A merciless killer stalks Jessie and Ki in California's redwood country! Jessie and Ki rush to a northern California redwood forest to save Ms. Starbuck's logging business from the Mendocino Monster, but when they get there, they realize that the monster is a greedy two-legged one.

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.

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 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 must rescue Ki from a death-row frame-up! Jessie and Ki head for the rough and tumble town of Haley to exact revenge for the murder of Jessie's father, but when Ki is thrown into jail for murder, Jessie must take on the entire town in order to prevent the death of her partner.

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.