The Sontarans caused considerable damage to the surrounding areas of London that Martha and her team of UNIT soldiers set out to contain. While giving her orders and seeing to the injured, she takes a minute to savor the feeling of being wrapped with the Doctor's coat. He had given it to her when he and Donna had found her in the Sontarans' temporary encampment fettered and trembling in a drafty room. The Doctor had used his sonic screwdriver on the lock chaining her to the wall before wrapping her in a fierce hug—they only had seconds to say their hellos. Along with Donna, the Doctor helped Martha make her way back to her UNIT crew before they temporarily separated to deal with the Sontarans in their own way.

In the aftermath, Martha mulls over the day's events as she stretches her arms downwards and laughs to herself. She must look ridiculous to her troops, what with the sleeves of the coat sagging a few inches past her fingers, but she doesn't care. Don't do this Martha, she chides herself. You have gotten over this silly infatuation with the Doctor. But is it, and have you? In the past year and a half she had busied herself with passing her exams, getting certified and working for the Royal Hope, and now UNIT. She even travelled to Cardiff to help Jack and his Torchwood team deal with the mayflies at The Pharm. She realizes belatedly that she did all of that not just to continue where she had left off before travelling with the Doctor, but also to put her feelings for him out of her mind. But with his reappearance all the lines she had once drawn are now becoming blurred, and Martha's unsure of what her true feelings are anymore. Disconcerted by her thoughts, Martha shivers and begins to walk away when she hears a familiar voice calling out to her from down the hill.

"Nice coat you have there, Ms. Jones. It suits you."

Martha turns around to see the Doctor walking towards her with his hands in his trouser pockets, smiling widely in her direction.

"Be careful, Mr. Smith, I might just have to take this home with me. The additional storage space would come in handy. By the way, good job out there."

Martha replies with an identical grin as the Doctor reaches the top of the hill where she stood facing him.

"What can I say, we make a good team." He gazes down at her, delight clearly written on his face.

"Thank you for answering my call. I was afraid you might've lost my phone with all the running around you do," Martha said, drawing circles in the air with her finger.

The Doctor pats his suit jacket. "Impossible! I keep it safe right here. But next time, a call for a cup of tea would be much better."

She chuckles in response as she shrugs off the Doctor's coat and hands it back to him, "I'll keep that in mind. So, Doctor, how have you been?"

"Good, good. The usual, getting into trouble. Getting out of trouble. Pompeii, the Ood, Fat babies. Imagine, Martha, babies made out of fat! Donna seems to enjoy it. Some of the time. The other half she enjoys shouting at me."

"I like her already," Martha teases.

"Oi!" He yelps, feigning offence. Their laughter subsides and the Doctor moves closer, taking Martha's hand and says quietly, "Well Martha Jones, how have you been?"

"Busy. Royal Hope. UNIT. Spent a bit of time at Torchwood, actually. Jack sends his love. The family's great, Tish helps out at the office, Leo's happy, mum and dad are sickeningly sweet, but I'll live," Martha rambles, trying to ignore the Doctor's close proximity to her.

"Good to hear." He closes the gap between them and hugs Martha.

"I missed you."

Surprised at this unexpected move, Martha looks up at the Doctor, whose voice has suddenly lowered to almost a whisper, but just as suddenly changes to a high-pitched and jovial tone, baffling her further.

"So, fancy a trip in the TARDIS for old time's sake, Doctor Jones?"

Martha pulls back and shakes her head slowly, "Doctor, I'd love to but I can't. That 'one trip' thing didn't work out as planned last time. Besides, I can't leave right now, you understand." The Doctor stares at the ground, shuffling his feet as he puts his hands back in his pockets, "Yeah, yeah of course. Yeah. Alright. Well, we better go, you know, things to do, places to see."

"Aliens to annoy."

"Oi!"

Martha snickers at his reaction before hugging the Doctor once more, "Thank you again, Mr. Smith."

The Doctor gently releases her as he fixes his eyes on his once-Companion, "You are most welcome. Take care of yourself, eh?"

"I will. You too." As an afterthought Martha adds, "And Doctor, take Donna to some place nice and disaster-free for your next trip."

"I'll remember that. Thank you, Martha," the Doctor murmurs.

"For what?"

"For everything."

Martha looks at the Doctor, knowing what he means without him saying the words. She stares into his eyes and remembers how filled with excitement they had been when she first met him on the moon, but now she notices that his eyes have become a deeper shade of amber-- older, more tired, more vulnerable. How can a man so young have eyes so old? She knows how, and why. It happened to her too. Martha senses that the Doctor's remark has changed something significant between them, but not knowing how to interpret it, she chooses to reply in the only way she has known to do.

"Don't mention it."

"And I'm sorry too."

She quirks an eyebrow at him. "You're sorry?"

He nods. "I'm sorry for ruining half your life, I –"

She interrupts. "Don't be melodramatic! You didn't ruin half my life. I had a hellish year, but we had some good times too." She pokes a finger into his chest. "Try looking on the bright side occasionally, yeah?"

A slow smile spreads across his face. "Doctor's orders?"

She grins up at him. "Doctor's orders," she agrees.

As the Doctor walks down to where Donna stands waving at them in front of the TARDIS, Martha shouts down to him, "Hey Doctor, take care of that phone, I may want you to come running my way again sometime."

With a lopsided grin, the Doctor turns around to face her one last time.

"For you Martha Jones, I'll always come running."