Woody's vacation in the desert [is] interrupted by a German-accented scientist who thinks he has landed on Mars and wants to take Woody back as a specimen.
The old and sick detective superintendent Bärlach has to investigate the murder of his colleague Ulrich Schmied, who was murdered in the middle of the country road.
Young forester Sixt is wounded one night. Smuggling in the mountains is the reason. By day, the brothers Benno and Simon Schaidler are respectable citizens - by night, they are smugglers and poachers.
A mad doctor uses patients at his isolated psychiatric institute as subjects in his attempts to create longevity by surgically installing an artificial gland in their skulls.