All adults have been wiped out by a deadly virus, leaving the children of the world to fend for themselves.

The recently widowed Jo March Behr continues to run the school she and her late husband founded, a school for boys called "Plumfield."

Two garbage men find the body of a city councilman in a trash can on their route. With help from a supervisor, the duo must solve the case and find the man's killer while hiding the body from the cops.