Rose crossed her arms. "So let me get this straight. We're in Ancient Rome, but a bunch of soldiers knew you were Time Lords." The Vigilante nodded. "Yep."
"They then proceeded to direct you to Customs, so you could learn more about the era."
"Correct," said the Doctor.
"And they had guns?"
"Type 12 S.C.A.R. assault rifles, to be exact," said the Vigilante. The Doctor glanced at him. "That's still kind of worrying."
"Ah, get over it." Rose frowned. "But this is Rome." The Vigilante flopped down on the couch. "Actually, I don't think it is. At least not the Rome we know." He turned to the Doctor. "Remember when the soldier told us where we were?"
"Yeah, he said we were in Rome, the capital of...oh. Now that's interesting."
"What?" Said Rose. The doctor turned to her. "The soldier didn't say we were in the Roman Empire, he said the Roman-Descart Empire. So who are the Descart?" The Vigilante folded his arms behind his head. "No idea, but I'm guessing they're not human. I'd say that – ooh, hang on, my axe is poking me." He pulled it out from behind him, and simply tossed it over the edge of the platform. There was a loud crash moments later. "That's better. Now, I'd say that the Descart have come to earth and provided the Romans with way advanced technology, probably for some reason that benefits them. Or something like that. Do you concur, Doctor Watson?" The Doctor gave him a weird look. "Why did you call me Watson?"
"I don't know, it just felt right. You know, because we were doing detective-y stuff. Hmm, maybe I should be named The Detective!"
"You already have a name."
"You're right. I am and will always be known as..." He jumped onto the seat of the couch, pulling a sword from nowhere and striking a dramatic pose. "El Luchadore! Ha Ha!"
"You are an idiot."
"Thank you. So! What's the plan?" The Doctor considered the question. "Let's talk to the people at Customs, find out what we can." The Vigilante punched the air with his fist. "Yes!" He ran down a corridor, returning moments later with weapons strapped all over his body. He grinned maniacally. "I've also got a can of pepper spray hidden, in case we get in trouble. And happen to be completely naked. Ask me where I've hidden it."
"No."
"Come on!"
"No."
"Spoilsport."