K9 mark four trundled across the TARDIS floor. He noticed the bright white roundels on the wall and the small console. In the corner was a helpless tied up old man. He looked oddly familiar to K9 but couldn't think why.

"Just tell us the Dranton key."Madam Kovarian ordered.

"I only obey my masters and mistresses." replied K9.

"Look,you'll either obey us or we'll do this the hard way. Believe me,you won't like that."warned the Master.

"I only obey my masters and mistresses."K9 repeated.

"Kovarian,take him to the Memory sieve!"he commanded.

Madam Kovarian carried K9 out of the console room.

She plonked him down on a large chair. The Master plonked a futuristic looking helmet connected to a large machine. The master ran over to a large lever maniacally and pulled it. The machine buzzed into life and began sieving out the memories inside K9.A screen on the machine showed various adventures of K9's: Defeating the Krillitane at Defrey Vale school,Professor Marius,Playing chess with the Doctor and lots more.K9 was helpless.

The Doctor studied the lock curiously. It felt familiar. Then it struck him.

"Of course. How could I be so stupid?If there was a stupid-o-meter,I'd be hitting the top of it right now. In fact,I'd be becoming the king of idiotness. It makes perfect sense. That TARDIS is my TARDIS from the past."he said,whilst slapping himself on the head. "The lock on this TARDIS is exactly the same,which means I can use my TARDIS key to get in and rescue K9."

"Well,what are we waiting for then,Doctor?Let's do it."said Sarah.

"Here's the plan. I'll go in and distract the Master and Madam Kovarian,while you sneak over to K9 and take him out of the TARDIS. If they've done what I think they've done,they'd have taken K9 to the memory room,which is where the memory sieve is. Just exit the console room,turn left in the corridor and BINGO!You're there."he explained. "Bingo. I should say that more often. Bingo sounds cool."

The Doctor unlocked the TARDIS door and entered.

He could only find Madam Kovarian. The Master must be in the memory room which means he needed to create a physical distraction. Near the central console was a tank containing a silent. The Doctor took out he's sonic and used the high pitched whirring sound to break the glass. This caught Madam Kovarian's attention,who before the distraction took place,was sat in a corner polishing her eye patch. She put her eye patch back on as the Master ran towards her.

"What's happened?"the master asked.

"What's happened?Use you're eyes,Master!A silent has escaped. Somebody's broke the glass."Madam Kovarian answered.

The Master looked in the direction of the tank,which had indeed shattered. Near it was a silent. The Master looked away whilst Sarah Jane quickly sneaked past and out of the console room.

"There's nothing there."said the Master blankly.

"Nothing there?Nothing there?When was the last time you had a eye test?"Kovarian spat while the Doctor sneaked out unnoticed.

Sarah approached K9 and took off the helmet. She carried K9 out of the door slowly and into the console room.

"Why were you keeping that silent in a tank anyway?"asked the Master. "I thought the silence helped you kill the Doctor?"

"That one's a rogue one. It refused to help me."Sarah heard Madam Kovarian reply.

She was just about to exit the TARDIS when the master spotted her.

"I'm afraid you're not getting out of here that easily."the Master sneered.

The Master walked up to her and gagged her,sellotaping her mouth with sellotape and tieing her hands behind her back. Madam Kovarian snatched K9 off the floor and took him back towards the memory room. The rescue had failed.