THE IMPOSSIBLE PLANET: Fear Factor 5 (Terrifying)

How scary is Doctor Who? Our brave Fear Forecasters present a minute-by-minute guide to The Impossible Planet.

Amy gave a score of 3
Amy (5)
Harry gave a score of 6
Harry (7)
Samuel gave a score of 6
Samuel (9)
Adam gave a score of 6
Adam (13)

The TARDIS hasn't translated the writing, it must be very old.(1) The Doctor can't read the ancient writing. Harry thinks he knows: "I bet it says 'Torchwood'!"

Strange creatures advance on the Doctor and Rose.(3) "We must feed," chant the monsters. Amy curls her lip in disgust at them. "They're hungggrry!" says Adam. "That was last week," Samuel chastises him.

The Doctor and Rose prepare to protect themselves.(4) "We must feed... you!" gets a big laugh from everyone.

Everyone runs to the command centre, something's about to hit!(5) Things are looking grim. "Oooh!" says Adam, remembering the words on the wall, "what if it is Hell?" Samuel decides that the planet's called 'Hell'. "Welcome to Hell. What the Hell?" He is delighted at the chance to say "Hell" lots of times without getting into trouble, until he catches Mum's eye.

The Doctor and Rose look up onto a black hole.(7) The Doctor's wrong: "It's a black and yellow hole," notes Amy.

Danny and Scooter tell Rose what the creatures are, the Ood!(11) We learn the name of the monsters. Adam and Samuel experiment with this new name, and decide they like it: "Oooood!" Amy likes the Ood now - she thinks they're silly. "Why have they got straws in their mouth?" she adds, smiling.

The Doctor works out that what's happening is impossible.(12) All the sixes - the hairs stand up on the back of Dad's neck. The younger kids miss the reference entirely.

The Doctor hugs Zack, Humans are great!(13) The Doctor hugs Zack, providing a good excuse for a family hug.

Rose looking off the edge of a cliff, the TARDIS has gone.(14) The TARDIS is gone! "Goodbye TARDIS," says Adam sadly. However Amy and Harry don't believe for a second that it's gone forever.

Toby hears voices and goes to check.(17) Adam and Samuel are unimpressed when Mum and Dad hum along to "Bolero". As night-time falls, Toby's all on his own. Harry tenses up - it's very creepy.

A creature appears in screen, behind Zack.(19) When the 'dinnerlady' Ood mentions "The Beast and his Armies", Harry realises with shock that the Ood are bad guys. Worried, he notes how many of the creatures surround our heroes... Then suddenly: "A devil!" Samuel is delighted at this new opportunity to shout "Hell!"

The voice is back again, Toby is scared.(20) "Don't turn around," whispers a very sinister voice. "No!" Samuel yells at the screen. "Do turn around Toby!" He decides it's time for another family hug. Harry's nails slowly make for his mouth...

The unreadable writing is all over Toby's skin.(21) Everyone gets a big shock as writing appears on Toby's hands. Eek! And now on his face! Samuel: "It's taking over his whole body!" Amy's less concerned, though "Why has he been writing on himself?" she asks, knowing that this is a naughty thing to do.

Rose can't get any signal on her phone.(25) Rose's phone rings, and everyone jumps at the creepy "He is awake" message. Harry's on tenterhooks, but Amy's not bothered about someone being awake.

The Ood are acting strangely, 'You will worship him!'(26) The Ood are "shouting". Adam is chewing his finger nails. "I don't like them anymore" decides Amy.

Possessed Toby is outside the ship, beckoning Scooter to join.(28) Toby's outside the base... Harry's inside his T-shirt. The window starts to crack - Samuel is fascinated, half-worried and half-eager: "The pressure will rip her to shreds!"

Toby looks normal again and he can not remember anything.(30) "Hey! Toby's back inside!" realises Samuel. Adam nods: "And he's gone back to.. er... him!"

Scooti is found, floating outside in space.(31) Harry shakes his head sadly as The Doctor finds poor Scooti. Adam observes coolly: "They'll never see her enter the black hole because..." and then he commences a complicated explanation about event horizons and the speed of time that eventually gets him shushed by the rest of the family.

The Doctor and Ida head down the mining shaft.(36) The Doctor starts his descent. Adam ponders the physics: "It's impossible to go to the centre of the Earth, you'd just burn up." Mum can explain: "This whole planet's impossible." Adam nods sagely: "That's true."

The Doctor at the centre of the planet.(37) The lift stops at the centre of the planet. Adam: "Ooh, it's dark!"

The Doctor and Ida find a sealed shaft, like a trap door!(39) The trap door. Harry stares in wonder at its enormous size, but Adam's unconvinced: "That's not 30 feet wide!"

The Legion of the Beast, a.k.a. the Ood, attack a guard.(42) It's hand-holding time all round as the Ood advance. One of them uses its translator to kill an unfortunate guard. Samuel: "That's scary!" "Yeah," agreed Adam, "it's really goOod!"

The trap door has opened, the Doctor and Ida look down.(44) As something emerges from the pit, Dad decides he can't tell Harry to stop biting his nails as he's now doing the same thing himself...