So to clarify, we're talking the center path? If you get caught by the hyenas, you get a scene with them, but then can continue trying to lure in dobermans. You won't be able to get ones you've already pulled, and it's randomized: it activates...3 or four, can't remember, at random to be available, and if you go through all 4, it activates a new random set of 4. Once you've used an alley, you can't immediately use it again, you have to take them to another one, but there should always be A doberman to find and A alley to take him to. Finding both and threading that needle without getting caught is the challenge.