Nate Scholz

The CBI team investigates a 25-year-old case that seems to involve both Red John and the Visualize group; while Lisbon contemplates her future.

It's literally a race against the clock for the BAU to capture the vigilantes behind a series of attacks taking place every 27 minutes in the nation's capital. Prentiss and Unit Chief Andrew Mendoza lead the effort to identify the Unsubs and what's motivating them.

As a deadly crime spree begins to surface, a century-old urban legend takes shape in Portland's sewers and becomes Nick's (David Giuntoli) latest case. In Europe, Adalind (Claire Coffee) meets Prince Viktor (guest star Alexis Denisof), who's come to bring those responsible for his cousin Eric's demise to justice. Meanwhile, Captain Renard (Sasha Roiz) responds to the recent attempt on his life.

The NCIS murder case of a retired Navy Lieutenant Commander forces Ducky to reveal his participation in a secret society that solves cold cases.

When people begin getting hurt in the unluckiest of ways, the Librarians are led to a casino where the owner appears to possess an artifact capable of stealing people's luck.