Trapped in a sleepy Washington town, the detectives take on a local case: helping Crystal's quirky housemate Niko get rid of her paranormal parasites.

The gang looks into a disturbing trend of deaths at a lighthouse. Crystal hears a distinct voice while piecing together clues about the seaside mystery.

A crisis forces Crystal to improvise on the job as Monty recruits the boys to locate his missing friend — but the eerie case isn't what it seems.

When Edwin gets caught in a frightening situation, Charles relies on his best mate's meticulous notes to find him. A determined Crystal confronts her ex.

Crystal reckons with the past after memories come rushing back. With Esther's evil scheme underway, the group is forced to face their deadliest foe yet.