In priestly disguise, the con artist Orlowsky learns from a last confession about a village where a treasure is hidden. He seeks out the Mexican bandit Max Lozoya, who knows more about its precise location – (part of) the instructions is tattooed on his ass.
Astronomer Professor Thongchai and his assistant Sek observe some meteorites falling and determine they struck somewhere in Southern Thailand. They head for Ranong Province where they start their investigation at a potash mine owned by Luang Kosit. When they arrive, they find the place under siege by some gunmen. Sek pitches in to help out, and to return the favor, Luang Kosit brings Thongchai and Sek to his home and offers them a place to stay.