Another Bruz quest, another chance to follow Ratbag into a trap.
Arrive at the cave to have Bruz talk at you some more, then you have thirty seconds to sprint to the end of the cave to rescue Ranger.
Only it's not Ranger, it's a bundle of explosives.
Now you need to sprint back out of the cave, avoiding the exploding barrels. There's no tine limit, but you'll still want to move quickly.
Once you reach the cave mouth, there's an ambush. Still, it's only a couple of orcs, and it's the only fight of the mission. Use your arrows to take down the spear-throwers and shield-carriers, then kill the others as you see fit. When the last one falls, the mission is over.