Jack giving a phone call to Graham that goes along "I'm setting up a team-"
“Silver Fox!” the voice at the other end of the line boomed in a mid-Atlantic drawl, and Graham removed the phone from his ear, looking at the strange caller ID and wondering how they’d got his number. “How are you? How’s Earth treating you?”
In lieu of anything more significant to say, Graham blurted uncertainly: “Erm, how did you get this number?”
“Oh, please. It’s listed on several sites on the dark web - or it was, anyway; our tech guys took care of that for you, and your grandson’s as well. No more spam calls for you guys.”
“No, just... random Americans instead.”
“I’m not a random American,” Jack noted. “I’m not even technically American. And this isn’t a spam call.”
“How did you know we were back on Earth?”
“We keep very close tabs on the Doctor’s old friends. Don’t worry about that.”
“Look...” Jack paused for what Graham suspected was dramatic effect. “I’m setting up a team. Me, a couple of old friend’s - the Doctor’s old friends - and, if you fancied it, you and Ryan.”
“An alien-arse-kicking team,” Jack said, and Graham could picture the grin on his face as he spoke. “What do you guys think?”
“Well, I’d have to run it past Ryan...” Graham said thoughtfully. “But... do you know what, I reckon that’d be right up our street.”