 The graduating class at Miss Aversham and Miss Cronstall s School for Girls find that they have - in defiance of the laws of nature - all blossomed simultaneously. Capitalizing on their improbable hotness, they issue a challenge to the boys of rival private schools, Selby House and Lancaster College: The winner in a series of athletic and academic competitions will be awarded exclusive rights to the girls as prom dates. Like the capricious and meddlesome gods of Greek mythology, the ACS girls pit the boys  schools against each other in a Prom War.