Michael Henderson, based in Kununurra 2,000 miles from Perth, is on his way back from a trip to Darwin and brings some much coveted presents for his workmates. Joe Connolly, from Tallaght, decides to fly his best friend out from Ireland to Perth at a cost of €6000. Joe's best friend? A dog named Riggs. Later he works with Detective Ciaran Cleary on a nasty domestic violence case. Dubliner Peter Crosbie works forensics by day. By night he plays in a rock band. We join him as he rehearses for a big gig in downtown Perth on St. Patrick's Day. And Tipperary man Martin Mitchell checks in for his first day on the job as a police officer in Palmyra.