This is the beginning to 'Doctor Who Return of the Kaleds' sequel so I suggest to understand the past you should read the prequel!
Chapter 1
Rose opened her eyes sleepily and turned her head to face the man lying next to her. My Doctor. She thought. She had no idea and didn't even want to ask how at the (estimated) age of fifty he kept the wrinkles at bay. Apart from his thin, greying hair, he didn't look a day over thirty five.
She heard a clattering from the next room. Out on the landing she peered through the half open door. A little girl of about five had her back to Rose and was strewing her toys across the floor. She flicked her straight shoulder length, honey coloured hair out her face as she worked. "Claire, I hope you're gonna tidy that up."
The little girl lost he balance as she wheeled around and fell over. She burst into tears. "Oh, sweetheart." Rose said, picking her up. "You've gotta stop doing that."
The Doctor came in wearing his pyjamas and a dark blue dressing gown. "Happy Birthday!" he exclaimed, smiling.
"The big forty," she sighed. "Way hay!"
His face fell. "I was gonna cook you a surprise breakfast. What's up with Claire?"
Rose put their daughter down and Claire immediately ran into his arms. "She fell over." Rose explained. He picked her up and swung her about. She squealed in delight. He lowered her back down and Rose admired how great a father and husband he'd turned out to be. She walked towards him and grabbed his hands. "Presents?" she asked.
"Go downstairs and see." He replied. Sure enough there was a pile of presents on the rug by the fireplace. She ran over and fell to her knees. "There aren't as many there as I'd liked to have gotten you." The Doctor said, watching from the door with Claire, pleased by Rose's looks of glee. She began opening one of them and discovered it was the perfume she'd seen in a shop a few weeks ago. "You remembered!" she said happily.
"Don't sound so surprised." He told her. He then pointed at another gift. "Next one's from Claire." It was a photo frame and there was a photo inside it of the three of them on holiday in the south of France last summer.
"Oh, thank you baby!" she cried, holding her arms wide. Claire ran over and gave her mum a hug. She released her and the Doctor said, "Oh, I nearly forgot. We got a letter in the post. Kids are being evacuated from London and the Government want one sent here to the cottage. We've got to be at the airport at miday."
"The war." Rose muttered. Everyone was getting sick of it.
"Why can't the human race just get along?" the Doctor said. "Attacking each other when they should be more worried about the Radons."
"Radons?" Rose repeated.
"They try to invade Earth in 2025, two years from now. They're gas creatures from a far corner of the universe, their race was threatened in the Time War. Luckily for us, now I'm human, they won't be able to track me down."
"Torchwood can't sort these problems out anymore after they got shut down. Who will?" Rose asked.
"The Time Lords will step in." the Doctor shrugged. "World War three is over next year anyway." He looked over at Claire who was now sitting on the sofa quietly. For a five year old it was strange for her to be so interested in space, aliens and history, so whenever the Doctor talked about his past experiences as a Time Lord, she listened intently.