Although Series 2 is interesting, there are so many holes and implausibilities as to make it laughable. The absolute worst comes in episode 5. Gregor is in Hamburg. His team is tailing a Turkish antiques smuggler, who is in the market square in Graz. Half an hour later, Gregor joins the tail for a coffee in the square.
Hamburg to Graz is 1,100 km. Explain how Gregor got there, in 45 minutes? Or did the Turk walk around the market for a very long time before having coffee?