Where is Luna Parker? Park Ranger and boyfriend, Owen, desperately searches for her in the vast desert of Northern California. Trestle 57 was the last place she was seen alive. For tourists and locals, the bridge is a fun haven along the American River. But for some like the local Sheriff of Placer County, it's a harbinger of death. Only after going through hell will Luna Parker be found, if that is, she is still Luna Parker.