Cassandra "Casey" Calhoun's passion for gardening has brought her to the most important patch of land in America -- President's Park, on which sits the White House. While readying the final touches on an innovative cultivation program for the First Lady to inspect, Casey is attacked. When she comes to, some damaged foliage leads Casey and the Secret Service to a dead woman in a trash can. Now Casey has to root out a killer before she ends up planted.