A recently divorced cop adopts a police dog who lost his former companion, together they solve crimes in and around Vienna. Also known as "Inspector Rex" in Australia and "Rex: A Cop's Best Friend" in the UK.
After Rex's handler is shot and killed while stopping a bomber. Moser who has just divorced is drawn to Rex and breaks him out of the holding cage. The two of them then continue to work on the case which lead to Rex's handler being killed.