The Headmaster's attempt to find Dinah through a TV show backfires when the wrong Dinah Hunter steps forward. Meanwhile knowledge continues to pour into HyperBrain, and Michael spots Dinah and Ian on the green badge cams, leading him to believe Dinah's being stalked. Meanwhile the Headmaster summons Mrs Hunter to the laboratory after spotting her with Harvey - who is devastated at what the Headmaster has done.