Ep 23. Big Sea

In Criminal Minds season 6 episode 23, titled "Big Sea," the BAU team is called in to investigate a series of murders along the Gulf Coast. The killer's method is unusual - he uses toxic chemicals to drown his victims in fish tanks.

As the team delves deeper into the case, they discover that the killer seems to have a connection to the local aquarium. They suspect that he may be an employee or a volunteer who has intimate knowledge of the tanks and their contents.

Meanwhile, JJ struggles with her emotions as she deals with the aftermath of her abduction by the serial killer in the previous episode. She confides in Hotch about her fears and doubts, and opens up about the trauma she has experienced.

As the BAU gets closer to identifying the killer, they realize that he has been keeping a close eye on their investigation. He starts targeting members of the team, and they must race against time to stop him before he claims another victim.

With high stakes and intense action, "Big Sea" is a thrilling and emotional episode that showcases the skills and dedication of the BAU team as they work to solve another challenging case.