Ep 24. The Crimson Hat

In season 4 episode 24 of The Mentalist titled "The Crimson Hat," Patrick Jane is on the hunt for Red John, the infamous serial killer who murdered his wife and daughter. The episode begins with Patrick receiving a message from Red John, inviting him to a meeting at an abandoned amusement park. Patrick decides to go, with his team following him closely.

At the amusement park, Patrick meets with a man wearing a red hat, who he believes to be Red John. However, the man denies being Red John and Patrick realizes that he has been tricked. As he tries to leave, the park's security guards stop him and he is taken into custody.

With Patrick in custody, his team begins to investigate the amusement park and anyone who could have set him up. They discover that the man who contacted Patrick was working with a group of Red John followers, who are using the serial killer's name to carry out their own murders.

Meanwhile, Patrick is questioned by Sheriff McAllister, who has been investigating his claims of Red John's existence for years. However, Patrick is convinced that McAllister is working with Red John and tries to get a confession out of him.

As the investigation continues, the team discovers that Red John's followers are planning to carry out a massive attack at a local shopping mall. With the clock ticking, they race to stop the attack and catch the culprits.

The episode ends with a shocking revelation about Red John's true identity, setting the stage for the next season of the show.

Overall, "The Crimson Hat" is a thrilling episode of The Mentalist that keeps viewers on the edge of their seat with its twists and turns. The episode features strong performances from the cast, particularly Simon Baker as Patrick Jane. It's a must-watch for fans of the show and crime dramas in general.