Your round a corner to reveal a small room, about 10' by 15' full to the brim with weapons, armour, and othe things you'd expect to see in a suply room for guards. There is also a guard sitting in the far corner, waking up slowly and drowsily. Horifficly high listen roll
Down the corridor were the signs are pointing to the kitchens etc, a guard comes out in full armour, and notices you as the prisoners, and slowly moves foreward, sword ready.
I'll do one large combat, so first six get's a surprise round, then I'll do initiative