experimenting with the Doctor's biodata. The Doctor learns that the man's name is Griffin and he wants to collect the unnatural creatures in the city. The Doctor traps Griffin who explains that his ambition is to categorize every creature in the universe. Griffin then escapes and the Doctor returns to his hotel. At the hotel Griffin's henchmen kidnap Fitz, but accidentally leave Sam behind. The Doctor goes to check Joyce's progress with his equipment, only to discover that Joyce has also been experimenting with his biodata as well, but refuses to explain why. After learning that Fitz has been kidnapped, the Doctor confronts Griffin, who explains that he wants to see the Kraken destroy the city. Griffin decides to simplify the Doctor's biodata and begins experimenting on it. Sam attempts to rescue him, but Griffin takes a sample of her biodata before they both escape. Joyce finishes repairing the Doctor's equipment. Returning to the scar, the Doctor finds his equipment can't close the scar and will only remove the TARDIS from the scar, which will enable the Kraken to destroy the city, so the Doctor decides to sacrifice the TARDIS to seal the scar. Joyce accidentally tells Griffin that the largest amount of the Doctor's exposed biodata is at the scar. Griffin goes there and tries to edit the Doctor and Sam's biodata, but the Doctor threatens to alter the higher dimensions that Griffin lives in. Griffin releases Fitz, but Fitz then attacks Griffin and traps him in his dimensionally transcendental specimen box. The Doctor pulls the TARDIS out of the scar, causing the Kraken to look for food. The Doctor places a machine to distract the Kraken on the bay, and the boy offers to create a paradox, but the Doctor refuses. Back at the scar, Sam jumps in, turning her into blonde Sam. The Doctor frees Griffin's specimens from the box, who attack Griffin and push him into the scar. Sam throws the specimen box into the scar after him, causing it to close, and which causes dark Sam to cease to exist and the Kraken and the other creatures return to their own dimension. The boy explains that blonde Sam is a paradox, because blonde Sam was created when dark Sam threw herself in amongst the Doctor’s biodata in the scar, but she was only able to do so because the Doctor brought her to the scar