Jack looked around the base and found it rather odd that it was quiet. "I honestly dont know." So Jack thought for a moment and then walked further in and went to the meeting room. Walking through the hall, and seeing the door, he set his ear to the door and smiled, still holding the plate of pizza. Opening the door, he saw them all sitting and chatting, trying to find anything that may say Alien. Of course when the door opened, they all looked up to see Jack and the Doctor. They were shocked to see them and rather amazed. 
"Jack. Doctor. Welcome back!" Qwen greeted, going up to them to hug them both. Ianto smiled, glad to see Jack was okay and well again.