In the premiere, Maine politician Claire Warren's presumed-dead son Adam returns home a decade after he disappeared; and while he's welcomed with a mixture of joy and astonishment, he's also met with suspicion, as some doubt that he is who he says he is. Adam's reappearance also reverberates beyond the family: the neighbor convicted of his murder must be freed.moreless
A wedding planner turns up dead and it turns out that she used to date Clive. The murder weapon is Clive's stolen 9mm Beretta, and Liv and Ravi set out to clear their friend's name. Problems arrive when it turns out that the planner was an obsessive stalker... and Liv has to eat her brain to solve the case.moreless
Grace is thrown into general holding, but Mitch continues his investigation. Meanwhile, Alex makes a move to take the leadership and attempts to mend some bridges with him.
Sonny Burnett, a man with a dark side, who became extremely violent while at Alcatraz reappears.
The Mantis, a masked vigilante, competes with SBPD to capture the Camino Syndicate so PSYCH is called in to capture the Mantis. If only they could see further into the future than he apparently does.moreless