It became increasingly evident that the Doctor chose the wrong group of survivors to mess with. If he wanted to kill one of them, he'd have to kill all of them. And David wasn't having any of that. Ace, Meg, and Claudette were his family, and if anyone, be it the tiniest insect or even God Himself, dared to bring them harm in any way, they would have to answer to him. It was also why when the three of them weren't in danger, David tried his best to keep them far away from it.
"Go get the door," he told Meg as soon as he saw her emerge from the foliage and fall in line beside him. "I got the smartass."
She simply shook her head, saying, "Claudette's already on it. I'm with you on this David. I care about him too."
He wanted to argue, but couldn't. She was right. He just hoped Claudette would have the door open if they pulled this off without a hitch.
"Alright, but I'm leading this rescue," David reluctantly agreed. "Got it? Just get Ace and get out. I'll handle the Doctor."
"Sure thing," she replied with a look that said otherwise.
"I'm serious."
"I know, I know! Gosh, can't you trust me?"