Trying times bring Kate and Tully together as they contend with an overbearing grandma, a pesky new intern and an ex-husband in distress.

As an old friend visits Helen, a new mermaid arrives leaving Ryn questioning their motives. Maddie learns the truth behind Ian’s death, as Ben fights for his mother’s treatments. While…

When the military facility goes on high alert, Chris manages to escape, but he’s not the only one who gets out.

Maddie and Ben contend with how to help Ryn knowing that in order to help Elaine get better, they will need to continue the procedures on Ryn. Meanwhile, when one…

When Tobias Church captures and tortures one of Oliver’s new recruits, Oliver must turn to an old friend, Christopher Chance AKA the Human Target, for help. Meanwhile, Felicity’s worlds collide…