Following this vision, Sara discovers the rover that had been used by David Morgan on his excursion, half sunk in the sand, with blood-stained wind shield. In the colony, Paul Halloran tells Peter about his racing horse that came to death on Halloran's wrongdoing, which he deeply regrets. Sara Keller insists that a search party should be formed to seek David Morgan, but Danesh, the colony's boss, refuses. The next day, while drilling for underground water, Paul Halloran experiences a vision of his dead horse, and attempting to reach for it, he steps into the operating drilling gear and is fatally wounded. The colony's crew and their leader, Danesh, conclude that the visions are not randomly caused by the environmental conditions but are some form of attack on the crew. Danesh invokes a state of alert and, with David Morgan missing, assumes the controlling position of the colony. Peter discovers a secret message in David Morgan's room and location coordinates. He takes a rover to go into the desert to the coordinate spot. He is stopped by Sara Keller, but she decides, apparently against Danesh's orders, to let Peter go and find out what happened to David Morgan. Peter ends up in a cave where he experiences an appearance of his deceased wife Bea. The musical score for "Oasis" was composed by Martin Phipps. The show's theme song, "Human", was written by the English singer-songwriter Rag'n'Bone Man. Additional songs used in the show include "Walkin' After Midnight" and "Crazy" by Patsy Cline, "Wrong" by Depeche Mode, and "Halfway To Paradise" by Billy Fury. The pilot received a positive review from Beth Elderkin in "io9" who complimented MacDonald's direction and Madden's acting, but criticised that the other characters were poorly developed. Andrew Liptak wrote for "The Verge" that the show might become "a compelling, thought-provoking story" with themes similar to those of Stanisław Lem's novel "Solaris" (wherein a psychologist travels to a space station orbiting an exoplanet as some crew members call out for help after inexplicable events) and the short-lived 2011 BBC drama "Outcasts" (about strange things happening on a colonized distant planet). IndieWire rated the "Oasis" pilot a B−. On Rotten Tomatoes the pilot has an approval rating of 75% based on reviews from 12 critics.