Whitetailed deer graze along roadways, browse in backyards, and vanish into tree lines within the same afternoon, living closer to people than almost any other large wild animal in North America. Dr. Jay Boulanger, who coordinates Cornell University's Deer Research and Management Program, explains why: suburban development has accidentally built ideal deer habitat, mixing lawns, gardens, and ornamental plants into a food supply richer than any rural forest offers. The film traces the population math behind that claim, from fewer than a million deer across the continent a century ago to close to 30 million today. Cameras follow deer through yards and roadside edges to show the behavior behind the numbers: how they read human activity, where they bed down near houses, and how does raise fawns within sight of traffic. Boulanger's research frames the film's real question, not whether deer can survive alongside people, but how thoroughly they have adapted to a landscape humans never intended for them.