Julie Prince is a top college student, destined for conventional success. But then she falls in love with Neil, a radical graduate student, and abandons her privileged East Coast life to tree-sit in the forests of Oregon. At first it is a romantic field trip; soon, though, Julie finds herself increasingly moved by the magnificence of the endangered forest and, like Neil, invested in its protection. Eventually pulled into a militant act of sabotage, Julie is forced to reassess her deepest held loyalties and beliefs.