The Golden Ankh - S4.E4

From the DNA sample obtained from a strand of Neri's hair, Praxis identifies Neri as an alien and makes her capture their top priority. Wandering in the desert looking for the Pyramid of Mystery, Neri, Jason and Brett get a ride from two Bedouins who take them back to their camp. Worried they've been picked up for the reward, when Neri rescues a young girl from a well, the trio become welcome guests. They are told a story about a Bedouin man who was abducted by people who ""live like fish."" The next morning they are taken back to the well that holds the entrance to the Pyramid of Mystery, they are spotted by Malakat and Shersheba who, after summoning Shelby and Hauser, pursue them into the pyramid.Inside the pyramid, Neri locates a golden ankh and opens the water portal allowing her, Jason and Brett to escape, emerging on the other side, they discover they've been transported to a cave in the outback.