The companions returned from the TARDIS, not entirely satisfied with the response they had received from the ship, but in the hopes they had enough information to help The Doctor in time. Seeing The Doctor's hologram talk to them was a strange experience, though they'd both encountered stranger. He looked much more well in the recording, which they were disappointed to realise he'd not put enough thought into. He obviously did not expect to get so ill that even a healing coma was redundant.

The UNIT medics were still busy conducting scans of The Doctor, so Donna took a seat and waited patiently, while Martha joined her team.

"That's looking abnormal, even for him," Martha commented. Her team were gathered around images of the Time Lord's brain. The marker had been successfully injected and they were able to map the blood flow in the tissues. There were inconsistencies where there to be growths of some sort forming, which would be blocking some of the brain signals. His Time Lord brain was complex and she couldn't be sure how it was mapped out, she just knew that it was not in good condition.

"I think it's safe to say that this sickness is attacking cells right throughout his body and none of our Earthly interventions are stopping it." Harrington stated. "How was your er.. 'talk' with his TARDIS?"

"Difficult, to say the least, but I've got some information that might help." Martha handed the disc over. "I didn't get much time to analyse it, before the TARDIS put the information on here. There are some molecular structures and compounds from her recent destination archives that look promising. You might have more luck with it in the lab. See if you can find a way to break it down in his body safely."

Her colleague nodded and went to get a head start while Martha took over the scanning process and kept an eye on The Doctor. None of the results looked good and only pointed to The Doctor's continued decline. Only when he was back in his room and Martha's colleagues were gone, did The Doctor open his eyes.

"Were you pretending to be asleep?" Martha asked him, curiously.

"Did they.. were they scanning ..my brain?"

"Yes, and your other systems. I'm sorry we weren't here for you," she put his hand on his, knowing it would have made him feel vulnerable. "Donna and I went to pay the TARDIS a visit instead. She's very worried about you. I could feel it."

"She would be," The Doctor confirmed and gave a nod, immediately wishing it hadn't, as it it's sent a spike of dizzying pain through his skull. Knowing he was struggling, Martha topped up his pain meds. "Have you found ..what's wrong with me?"

"We're getting there. The TARDIS provided us with some invaluable data."

"Was an ordeal and a half getting it from her, believe you me," Donna cut in.

"Translation circuits aren't.." He winced and continued. "Aren't at full capacity.." The Doctor said by some way of explanation, before he began to cough again. He brought up his functional arm to take of the mask

"Keep that on," Martha instructed and eased him forward slightly. She used her stethoscope to listen to his chest, as he continued to cough, becoming flushed. He should have been responding to the oxygen therapy better than this. "Just try to relax" He gagged slightly, as Martha took a swab from the back of his throat. She put the sample aside to be analysed. The fit didn't seem to be letting up though, as his coughing worsened and he had begun to wheeze in order to catch any air.

"Martha?" Donna worried and pointed out the blood that had entered The Doctor's mask.

"Keep breathing, Doctor, come on," Martha insisted with him. She called the nurses in to assist, one of them took the sample for testing and another made sure a crash cart was ready, just in case. He was already on full oxygen, but his levels were dropping again. His heart rates were picking up even more with the strain. His left particularly was fluttering at a dangerous level. She wasn't sure what more she could do, except try to calm him, or wait for him to pass out, if he didn't have a heart attack before that. His body was not picking up oxygen and his hearts were working harder to pump what little he did have around his body. "He's heading for respiratory and cardiac arrest. I'm not sure what I can give him that can safely stabilize him," she fretted.

"Doesn't he have something in his supplies that will help him?" Donna tried. Martha looked through the box, but she couldn't understand the labelling.

"Donna, would you go back to the TARDIS and find out what we can give him?" Martha gave her the task. Donna nodded and sped off, with the drugs in hand.

Martha was at a loss, as the Time Lord's vitals headed more and more into dangerous levels. It would be causing more adrenaline to enter his system, which would only further impact his renal system, by building up to toxic levels, he was not equipped to deal with. She drew some more blood and gave it to one of the nurses to run to the labs.

The Doctor was no longer conscious and alarms beeped as his left heart rate dropped off and stopped beating. "Oh no, you don't!" Martha protested and began CPR.

Sheena had the defibrillator fired up ready and Martha wasn't even sure if it was the right call, but she saw no other choice, as his heart was stopped and the other one was soon to follow. She took the paddles from the nurse's hands and called clear. Volts of electricity fired into The Doctor's still heart and traveled throughout his chest and causing is body to flop limply. Another alarm signaled that his right heart had just joined the left in arrest. By trying to restart one of The Doctor's hearts, Martha had just inadvertently stopped the other. The long tones of the heart monitors echoed through the room, tauntingly. Her patient was clinically dead, but Martha was not going to let him stay that way.

Again, Martha took a risk, calling clear and shocked The Doctor's chest. For a second time, The Doctor's still body jolted on the hospital bed, but there was no response. His complexion was white and waxy, with lips turned blue. Martha shocked him a third time, but at an even higher voltage and the left heart stuttered into life. "That's it, come on." Martha urged. While his heart was showing signs of life, they got him intubated and a nurse squeezed air into his lungs with the ambu bag.

The single heart continued to pick up into a steady rhythm. Martha was loathe to shock him again after what had happened the first time. She knew he could manage for a while with one working heart and didn't want to risk stopping it again, in order to try get the other going. Martha checked his responses, but he was out cold. They swapped the bag over for the ventilator. Martha checked and double checked his vitals. He had nearly died and she'd got him back, but barely.

Donna burst back into the room.

"Is he-?"

"He's stable, somewhat." Martha admitted. "One of his hearts is stopped."

"Can he function like that?" Donna genuinely wondered, though in a state of shock to see her Spaceman, so still, with a machine breathing for him.

"For a time," answered Martha. "Though I'm not sure how long he's got left. Did you find out if we can give him anything?"

Donna passed over one of The Doctor's drug vials, she had in her hand. "It was weird, I got the distinct impression from the TARDIS, that he should have 8mls of this, direct into his hearts."

Martha turned the vial in her hand, examining it and got a long syringe from the crash cart. She measured the dose and checked the syringe for any air bubbles. A nurse swabbed the area over his still heart with some iodine and gave Doctor Jones some room. Although Donna knew what was about to happen, she could not watch and looked away. Martha rammed the needle between The Doctor's ribs and deep into his chest, emptying the syringe. She watched the monitor and massaged the spot deeply with her hands. After a few more seconds, that heart too began to beat again. When it got to a steady rhythm she let herself breathe, but continued to check him over. His condition remained critical, but she had him stabilised. Although, she wouldn't put it past him to crash so severely again, just to scare her even more. She inspected the growing bruise, where she had punctured him and hoped it would not be necessary to do that again. Feeling as though she had been standing for an age, she took a seat next to Donna and tried to relax a moment. She could not help but notice how the companion was wringing her hands and looking to Martha, waiting for her to say something. But it was then that her pager went off and she was needed in the lab.

"That'd better be good news," she hoped aloud, before getting up once more, leaving the unconscious Doctor to care of UNIT's nurses and making her way back to the lab.