Sienna comes across something alarming on a walk. Warren won't let anything come between him and what he wants. And a husband is left heartbroken when he discovers the truth.

Carter's lingering dark side comes back out when he returns to his old way of thinking. Nana won't give up on her granddaughter's happiness. One dad will do whatever it takes to protect their child. And an unlikely pairing are tasked with an important job.