Tate is afraid of the dark. But his junkie sister has disappeared into the terrifying storm drains below Las Vegas. The tunnels stretch hundreds of miles beneath the city, housing the city's homeless and criminal element. Armed with only his flashlight, Tate wades into the gritty depths of the storm drains to rescue his sister from her demons.

Every step into the smothering darkness challenges Tate's resolve. With his sister's life and his own sanity at stake, Tate must face his fears or risk fading into the dank oblivion of the Las Vegas tunnels.