

Dinah Glass moves in with the Hunter family and starts going to the same school as her foster brothers Lloyd and Harvey. It's not easy, as they seem to hate her, and school is really strange. Pupils suddenly talk like robots and do weird things, even Dinah finds herself acting oddly. She's sure the headmaster has some kind of power over them, and is determined to find out more. But the Demon Headmaster is equally determined to stop her!. Based on Gillian Cross's books "The Demon Headmaster" and "The Prime Minister's Brain". Adapted for television by Helen Cresswell.
Metadata: TVmaze · CC BY-SA
25mAs Lloyd and Harvey await the arrival of their new foster sister, they wonder if she will be able to resist the mysterious powers of their sinister headmaster. Based on the books of Gillian Cross.
25mThe boys get suspicious of Dinah's state of mind when she breaks one of the headmaster's rules. Based on Gillian Cross's books.
25mThe Demon Headmaster's plans for Dinah are discovered - and SPLAT forms a counter-plan.
25mThe latest craze is 'octopus dare' and junior computer brain of the year competition. Dinah is a natural contender, but her behaviour becomes very odd. Could it be that the evil headmaster is up to his new tricks in a bid to take over the world?
25mSPLAT have found a way in to Vulcan Tower, and the Computer Director is using mind control, but Dinah doesn't understand why - yet.
25mThree of the Brains have disappeared, along with Ian. Dinah begins to catch on to what is happening, and everything depends on SPLAT getting to her. Then there's the matter of the booby trap to consider.

Catalogue: TVmaze · CC BY-SA.
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Dinah Glass moves in with the Hunter family and starts going to the same school as her foster brothers Lloyd and Harvey. It's not easy, as they seem to hate her, and school is really strange. Pupils suddenly talk like robots and do weird things, even Dinah finds herself acting oddly. She's sure the headmaster has some kind of power over them, and is determined to find out more. But the Demon Headmaster is equally determined to stop her!. Based on Gillian Cross's books "The Demon Headmaster" and "The Prime Minister's Brain". Adapted for television by Helen Cresswell.
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The catalogue lists an episode length of 25 minutes; individual episodes may vary.
The listed premiere date is 2 January 1996.