The Doctor couldn't sleep. He lay awake listening to Jack's gentle snoring and Imogen's grunting. Normally he could sleep through the noise, but tonight it was keeping him up. He lifted his head from where it was rested on Jack's chest and stared at his sleeping husband. Grumbling he got out of bed. Jack didn't care as he rolled over in his sleep and curled slightly on his side with a sigh. The Doctor though, picked Imogen up out of her crib and hurried down to the TARDIS.

Martha's words of that's not Imogen, kept playing in his head. Of course it was Imogen, he would know if his own daughter had been changed on him. But the doubt had been planted. He took her into the medi-bay and laid her in the cot they kept for her. Using a syringe, he took a small amount of blood and then placed it on a slide. Cuddling the now crying infant, he placed the slide where the TARDIS could analyze the blood. It took only a matter of minutes for the TARDIS to confirm that the baby was Imogen and that she had Time Lord energy that had dropped to 90%. He wasn't worried though, it tended to drop at night and would rise with her first bottle in the morning.

"So why was Martha convinced you had been switched Kui'la?" He asked her softly. He took her to the console room with him as he started to pull up information on the TARDIS monitors. No other kidnappings had been reported in the last few days of a child Imogen's age. As he dug deeper though he found that a mother had been discovered dead in London a month ago. The whereabouts of her two children were unknown but police were looking for two male suspects. With ease the Doctor hacked into Torchwood from the TARDIS and pulled up the surveillance footage from the store where Imogen had been left. He was watching the footage when Jack came into the TARDIS yawning.

"Ianto would like you to stop hacking our network." Jack grumbled.

"Sorry but I needed to see the footage you gathered." He replied not sounding sorry at all.

"And you couldn't wait until morning." The Doctor opened his mouth and Jack held up a hand. "Don't answer that." He walked up behind the Doctor and wrapped his arms around his waist. Kissing him softly on the neck. He watched the rest of the video with him up until the time the car started to drive away. The Doctor paused it.

"What?" Jack asked.

"I'm not sure." He rewound the tape and watched it again. "Did they follow the car once it left?"

"Yes but Ianto lost track of it." Jack answered.

"He didn't have me. Allons-y." He turned and pressed Imogen into Jack's arms as he danced around the console, setting the coordinates, pulling levers and pressing buttons. The TARDIS quickly landed at Torchwood at the Doctor was out the doors again before Jack even had time to process what had just happened. The alarms were still sounding inside the hub. He flopped into the chair beside the main computer network and with in moments the alarms went quiet.

"Sorry," He iterated again as he began to type.

"Sir," Ianto turned to look at Jack as he exited the TARDIS. Jack shrugged.

"A coffee and tea please Ianto and then you can go home for the night," Jack informed the Welshman. Ianto still looked confused as he nodded. Ianto disappeared in the kitchen, while Jack pushed two chairs closer together. He sat down in one of them and placed his feet up in the other. He leaned back, laying Imogen on his chest and closed his eyes. Even if he wanted to, he wouldn't be able to follow the Doctor's train of thought when he got into his moods. For now it was just better to let him work. Jack was asleep again by the time Ianto set the coffee down and let himself out of the hub.

The Doctor didn't sleep again though as he worked through out the night. He traced the car using the various surveillance footage around the city and by a couple of time predicting where the car was heading. The car disappeared from cameras at one point and checking the map he found it was about the point where Otis was found dead. Yet there were still two men in the front of the car. That only gave two options, either a. they had picked up a second man or b. Otis was with them the entire time, just not in plain site. He wondered if Otis had been in the boot of the car. He followed the car again until it was abandoned on the side of the road about an hour outside of London. From there he lost the men. Cursing to himself in Gallifreyan he reached over and tickled Jack's nose.

"I need access to the abandoned car," He told Jack as soon as his eyes opened.

"What abandoned car?" Jack asked in confusion as he woke up and tried to figure out what the Doctor was going on about. The Doctor sighed.

"The men who took Imogen, abandoned the car just outside of London and I need access to it, to find out if there is any evidence of Otis being in the front of the car or if he was in the boot." The Doctor explained rolling his eyes. Jack nodded slowly as he tried to wake up. He reached for the coffee cup that Ianto had left near him. The cup was empty, he looked at the Doctor again.

"I developed a taste for coffee while I was pregnant," The Doctor explained, dismissing Jack with a wave of his hand. "Now can you get me access to the vehicle or do I have to use the TARDIS?" Before he met Jack there would not have been a question. He would have used the TARDIS and the sonic to gain access to wherever he needed to go. Now because Jack worked for Torchwood and he was known to be with Jack, he tried to help keep the authorities from bugging Jack by going the legal routes on earth.

"When Gwen gets here in an hour, I will have her talk to the local police and get you access." Jack promised. The Doctor didn't look happy as he turned back to the computer and began to type quickly again. He wanted his answers now, but in the meantime, he still had to find the men who took his daughter.