This week, Riker feels the cold, clammy hand of anxiety grabbing his shoulder. But there’s no time for that, because a survey of desolate worlds turns up unexpected humans. Once the dust settles from the latest revolt, they discover a cockfighting ring—but it’s the birds pitting the humans against each other. Meanwhile, a young rebel leader learns that overthrowing the oppressor is merely the first victory. Why is Star Trek so bad at dealing with trauma? What’s the minimum threshold for getting to have an opinion on the bridge? And how much would a top-of-the-line thought-blocking helmet set Deanna back? All this and more in “Chains of Command”—no, not the one with the four lights.