Ep 1. The Crimson King

In season 12 episode 1 of Criminal Minds, titled "The Crimson King," the BAU team is tasked with investigating a spree killer in Oklahoma who leaves behind cryptic messages and symbols at each crime scene. Meanwhile, Agent Luke Alvez (played by Adam Rodriguez) joins the team as they pursue the killer.

The team begins to unravel the complex and disturbing motives of the killer, who appears to be targeting specific victims for reasons that are not immediately clear. As they race against the clock to stop him before he strikes again, tensions within the team also begin to rise as Alvez's unorthodox methods clash with those of his colleagues.

As the investigation heats up, the team discovers that the killer may have a connection to a notorious cult leader known as the Crimson King. With this revelation, they begin to piece together a disturbing picture of the killer's twisted worldview and what led him to become a murderer.

Amidst the tension and pressure of the case, the team also grapples with personal issues. Agent Emily Prentiss (played by Paget Brewster) struggles with the aftermath of a traumatic event, while Agent JJ (played by A.J. Cook) must navigate a difficult decision that could impact her family.

As the episode reaches its explosive conclusion, the team is forced to confront the killer in a tense and deadly showdown that will leave viewers on the edge of their seats. With stunning performances and a gripping storyline, "The Crimson King" is an unforgettable episode of Criminal Minds that showcases the show's unparalleled ability to delve into the darkest corners of the human psyche.