The team tracks two brothers set on getting revenge against members of the company that caused their town's environmental destruction. Also, Sarah meets the rest of the LaCroix family, including Jess' sister, Louise.

The team heads to D.C. to protect Ortiz's former informant after a hitman tries to kill her. Also, Sarah helps Jess' family prepares for Byron and Marie's last-minute wedding on Jess' farm.

The team hunts for a young man who is using napalm-style bombs to attack his targets. Also, with Tali away, Jess and Sarah begin to adjust to their empty nest.