It is a fourth entry in the Polda series about a dumb detective named Pankrác and his adventures. It's a humorous point and click adventure. Polda 4 is the first Polda game rendered completely in 3D graphics.

The world´s dumbest detective Pankrác is in his fourth adventure called by a well known scientist Santusov. The scientist is afraid by unauthorized use of his latest invention - the time machine. That is why he creates another time machine and sends Pankrác through the time and periods - past and future - in order to find out if his concerns are justified.