"I think I'm going to have to get my feet amputated, I'm sure they've got irreversible frostbite." Tricia said with a moan as she trudged through the snow by the side of the road.

"Well don't blame me, it was you who said it was a twenty minute walk maximum from where the car broke down to the village." Jenny pulled her flimsy jacket tighter around herself.

"It's you boyfriend's job to make sure all the emergency phones are working, surely!"

"He's not my boyfriend, and I'd imagine it's more likely to be a constable's job. The constable I believe has been a little distracted lately."

"That's only because-" Tricia stopped and grabbed Jenny's arm. "Look! Headlights! There's a car coming!"

Both women waved their arms and sighed with relief when David drew up next to them. "Not a very nice night to be out walking, Doctor." He slid his hat from his head.

"I know, David. We were out on a call and my car broke down."

"You'll be wanting Mr Scripps, then."

"We will. I don't suppose you could-"

Pleased to be of service, David gave a wide grin. "I'll go and get him right now."

Tricia's eyes grew wide as he started his engine once more. "No, David, I-"

She stared with dismay as the truck drove away and left them in the snow.

"Who was it that said he 's just misunderstood?" Jenny gave a slight smile.

"Oh, shut up." Tricia gave Jenny a glare before linking their arms again as they continued their trek towards the village of Aidensfield.

…

David frowned when he came to a roadblock and was waved to a stop by Alf Ventress.

"I can't stop, Mr Ventress. I need to get to Mr Scripps, I promised the doctor."

"I just need to check the back of your truck, David. We're looking for an escaped prisoner."

"You don't think he could have got in there, do you?!" David's eyes grew wide with fear.

"I'm sure he hasn't, we're just checking every one going this way."

David nodded and sat still as Alf walked to the back of the truck, but before he could lift the tarpaulin, David jumped out of the cab. "He isn't violent, is he? This escaped prisoner."

"I can't say, David, but I'm sure you'll be fine. I'm just going to lift this and-"

"I'm not worried about me, Mr Ventress. It's the doctor. And Jenny. See, I was driving along- I'd been to pick something up for Mr Vernon because he needed a part for his new tractor. He needs-"

"David, tell me about Doctor Summerbee." Alf interrupted impatiently. He wanted to get home to his dinner and the sergeant had assured him that relief would be there soon.

"Oh, right, well, I saw her and Jenny walking earlier. It was cold outside, I know because the heater in the truck used to work, but then Alfred-"

Seeing his sergeant finish talking to the occupant of another car, Alf interrupted again to call out to him. "Sarge! David has some information."

"I do?"

Dennis approached with raised eyebrows. "What is this information then, David?"

David turned opened mouth towards Alf who prompted him. "The doctor."

"Oh, right. I just thought, if this escaped prisoner is dangerous, perhaps someone should go and get Doctor Summerbee and Jenny. They're out for a walk."

"A walk in this weather?" Dennis frowned and David shrank from him.

"He said Doctor Summerbee's car had broken down, Sarge." Alf supplied.

"I see, and you just left them to walk back into town during the beginning of a snow storm, did you?"

David held his cap tightly to his chest and stared wide eyed at the scot.

"Where did you last see them, David?"