He shoots a sideways glance at Gwen, then when she seems to be lowering her gun too he moves -- lowers his hands and strides across to grab for Ianto's hand and haul him up.

"Okay buddy," he murmurs, "so what's the plan?"

So far as he can tell, this is a memory of Ianto's. That means, just like Holland and the Genii troops for John, here Ianto should know what's going to happen. If he knows what's going to happen, then they can stay ahead of it. They can predict it. They can avoid dying and hope they'll snap out of this any minute, back into reality.

Any minute.