The Alps, late 19th century. Greider, a mysterious lone rider who claims to be a photographer, arrives at an isolated lumber village, despotically ruled by a family clan, asking for winter accommodation.
Alex Rider is an ordinary teenager enlisted to work on behalf of MI6, where he uses skills he didn't know he had to become an extraordinary spy.
After his handler is killed, police dog Rex teams up with recently-divorced inspector Richard Moser to investigate crimes and solve mysteries on the streets of Vienna. And they sometimes get help from their two-legged friend, Inspector Stockinger.