When Dexter Morgan - the serial killer of serial killers - travels down under, he quickly discovers that sharks aren't Australia's only deadly predator! Who is setting up illegal hunting safaris in the Outback-and are humans in the cross hairs?
Shawna doubts that Grigsby is the killer but changes her mind when Dexter tells her of his hunch that he is the one. They try to convince Captain Gower, but he says they need to find actual proof before he can be arrested. Shawna orders Dexter to find the proof. After Dexter searches online for a few hours to no avail, Shawna takes him to dinner. She expresses her disappointment that he didn’t find anything yet. Dexter believes Grigsby will kill again soon, but Shawna thinks he will lay low for awhile. The next morning, they learn that Grisby killed three more Asians during the night. While they are at the crime scene, Grigsby watches them from the top a a nearby building.