Pearl (Diane Lane), a thirty-year-old wife and mother who longs for a bit of passion spends every summer in the Catskills with her two children and interfering mother-in-law. When a hippie named Walker (Viggo Mortensen) shows up in his funky bus, Pearl falls for his rugged good looks. A steamy love affair follows, resulting in a family-shattering revelation at Woodstock in this drama set in upstate New York in the late 1960s.