A decapitated body washes up in the mangroves, drawing Jay Swan to the furtive township of Gideon. It seems drug-related but is it also familiar? Partnered with local cop, Fran, Jay must unlock what the community knows.

Struggling with Mary's new relationship, Jay reluctantly uses Simon's help to narrow in on the drugs and murder investigation. With the discovery of the bones, Fran is determined to reopen Zoe's case on her own.