The murder of a geology professor leads the team to uncover an ancient legend regarding a secret treasure dating to the civil war, and they encounter a deadly fugitive determined to kill to find the gold. Meanwhile, an old friend from Remy's past shakes up his relationship with April.

After a tech entrepreneur is abducted from a rave in Brooklyn and found bludgeoned to death at his estate in Connecticut, Remy and the team must dive into the world of psychedelics to find his killer.