A crunch of footsteps and the Doctor is close to them. But rather than remain quiet in the alleyway, there's a clatter as he knocks against a rubbish bin, the metal lid rolling away and landing in a heap right in front the huddle of men.

He has their attention now.

The main guy steps forward, pushing his finger up against his hat and rolling his shoulders back.

"What do we have here, boys. Wise guy thinks he can follow us?" his voice is thick with a Brooklyn accent, and his cigar lights up as he takes a heavy drag. The Doctor takes a step forward, out into the half light of the alley.

"Yes, that's me. Following you. Up to anything tonight, fellas?" Oh he really has no idea what he's walked into.