John whirls around at the sound of Ianto's voice, slams his blade into the bandit he'd been engaged with and yanks it free as he sprints over.

"Ianto."

He skids himself over along the ground as Ianto's dragged backwards, kicks out at the bandits head and yanks Ianto forward toward himself at the same time. This is what he was afraid of, all the ones they stunned waking up. It's more likely the longer this goes on. He grabs the gun from Ianto's hand, twists and slams it toward the bit of the bandit's arm he can see.