Seventeen-year-old Lexi has been living in a remote stretch of the Rocky Mountain woods since her father dragged her there ten years ago, after her mother and baby brother were afflicted with a magical sickness. Her paranoid father thinks they've escaped the magic, and that as long as they never leave the woods, they'll be safe.

So Lexi never tells him about her friend Gil, who turns up sometimes in a birch copse that travels with him, and who is definitely not human. She especially doesn't mention the magic he taught her, which can open a path to wherever she needs to go. After all, she's been in the woods for most of her life: she can find her way without magic.

But when pop star TJ Furey hires them to help him hunt down a bear, Lexi's secret is threatened. The bear he wants to kill is under Gil's protection, and if Lexi doesn't prevent its death, she'll never see Gil again. But she can't do so without risking her father's wrath and when it turns out that TJ's manager is harboring a similar grudge of his own, Lexi feels trapped. If she wants her own life, she'll have to find a way to break all their expectations.

Leave No Trace plays the clash of worlds magic and technology, future and past, rural and urban against the backdrop of a bear hunt.