Dinah figures out there is more to the Headmaster and the school than it seems. By breaking a school rule, she hopes to gain more information, but this also lands the boys in trouble. Harvey finds Dinah's recollection of the content of a recent school assembly doesn't match up in any way, shape or form with what he saw. A piece of technology hopes to be able to solve the mystery of these assemblies - if the headmaster doesn't cotton on first. (thetvdb.com)