Alex begins his training with Michael, but soon after has a vision that causes him to go rogue during an Archangel Corps mission. Elsewhere, Claire goes out on a limb to protect Riesen, however she can't stop his long-held secrets from coming back to haunt him; and David makes a move to secure his power.

Alex is called upon by Michael to help prevent any further casualties after innocent higher angels turn up dead in Vega; at the same time, Gabriel causes tension by revealing a long-hidden secret; William "re-educates" his father; and Noma reignites an old flame.