A/N set in the Power of Three. Although, I rewrote the first line. I thought 'Don't despair Kate' was a bit dull

….

"Come on Kate, don't give up now, your dad never did. And you wouldn't even be here if your mum ever gave up!"

Kate looked up at the Doctor, the oh so impossibly young Doctor, in shock.

"Kate Stewart," he said, almost proudly "Heading up UNIT, changing the way they work. How could you not be."

He looked almost nostalgic.

"Why did you drop Lethbridge?" He asked.

"I didn't want any favours," Kate said, jutting her chin out. "Though he, guided, me… to the end. Science Leads, he always told me. Said he'd learnt that from an old friend…"

"Me and your mum. We don't let him down. We don't let them down. We don't let this planet down."

Kate smiled sadly, thinking about her old dad, and her mum, just waiting for it all to be over now.

The Doctor rambled about air, ventilation in underground bases and stormed off outside.

….

"Kate!"

Kate turned round to join the Doctor, a part of her glad he may have made some headway.

"Before they stopped, they scanned everything; from your medical limits to your military response patterns. They made a complete assessment of … planet… Earth…"

The lights went down around them. That's impossible thought Kate, pulling a torch from her pocket. Mum! Was quickly squashed. Her mother had told her to always put the sake of the Earth before her silly old mum.

"…and it's inhabitants," he continued "That's what the surge of activity was… problems with the power?"

"Not possible," Kate insisted "We've got back ups…"

She was gradually feeling more and more out of her depth. She wanted her parents behind her, schooling her through this. Like they always had.

The Doctor wanted her to get the nformation out that the cubes were dangerous, that they woud be lethal if they hit zero. He wanted her to use Twitter, social networking, text messaging, bing – whatever it took. Kate just wanted one phonecall. Amy, the Doctor's redheaded companion, and the Doctor were theorising about the cubes in a manner Kate agreed with.

"Then WHAM," He said

"Discover how best to attack us," She finished quietly. Her mum probably had a cube somewhere… It was a good military stratagem she would allow that.

"Get that information out anyway you can!" the Doctor ordered. Kate turned, issuing her own orders to members of her team around her. Then she made her way to the back of the room and pulled her phone out.

She bit her nails as the dialtone could be heard, willing her mum to answer the phone.

"Katie," her mum sighed, "I was wondering how long it would take for you to tell me to lock myself in my room. Your dad always did too. What's going on?"

"They've started a countdown," Kate admitted "They're dangerous, that's all he knows. That's all any of us know! If you have any in the house mum… get rid of them. Please. I just needed to know you were ok. I couldn't lose you so soon… I'll be over as soon as I can be. Please mum…"

Her mum sighed in defeat. It killed Kate knowing that her stubborn as hell mum had given up. "I promise Katie," She said quietly. "Now, you go and do your duty. I love you."

"Love you mum," Kate whispered, before snapping the phone shut. Then she took a deep breath and moved forward. Like mum always taught her.

…..

Kate just had to see the Doctor off. She was so much calmer now, she had spoken to her mum, had led the world and earned a much greater respect for er 'science first approach'.

"You, er, really are as remarkable as mum and dad said," Kate said. The Doctor looked a little flustered. Kate stepped in and gave him a kiss on the cheek in thanks. "Thank You."

"My! A kiss from a Lethbridge-Stewart, that is new…" The Doctor said, obviously pleased with himself, "New for a Shaw too. Liz never kissed me, she just sort of scolded me…Oh, dear, I'm late for dinner."

The Doctor made a joke handshake, then walked to the car. He turned. And he saluted her.