: Ryn's attempt to unite the fragmented mermaid pack against a shared human-led threat to their ocean home. Core Plot Summary
: Katrina continues to use force to bring the mermaid pack under her control. Xander is taken hostage on his own boat by Katrina and Cami, where he is trapped with a wounded Levi. Ben eventually rescues them.
: Sheriff Dale Bishop manages the aftermath of an encounter involving Maddie, Ryn, and a man from Susan's past. He frames the death of a drug dealer as a drug-related accident to protect his family.