On a remote homestead on the Martian frontier, a family from Earth clings to hope for a better life. But when strangers appear in the surrounding hills, nine-year-old Remmy catches a glimpse of the desperate reality her parents, Reza and Ilsa, have tried so hard to keep from her. Remmy’s parents kill two of the attackers and Reza pursues the third into the hill… but he never returns. Instead, the surviving stranger appears. He gives them the option to leave, but Ilsa, for reasons unclear to Remmy, refuses. They thus begin an uneasy détente with the stranger, who quickly insinuates himself into the daily rhythms of the homestead.