Summering on Cape Cod in 1985, precocious young Lily befriends an enigmatic girl her age named Mesa. Through their shared time biking the quaint land and exploring the depths of their true selves, they unearth powerful feelings for each other.
A German soldier tries to determine if the Dutch resistance has planted a spy to infiltrate the home of Kaiser Wilhelm in Holland during the onset of World War II, but falls for a young Jewish Dutch woman during his investigation.