Things will be intense when "Criminal Minds" airs its two-part, "action-packed" season finale starting on Wednesday, May 7.

In the first part of the finale, titled "Angels," the FBI's elite Behavioral Analysis Unit (BAU) will take a trip to Texas to investigate murders that appear to have a religious overtone. And on May 14, the final episode "Demons" will pick up where "Angels" leaves off.

A preview of "Angels" implies that two agents will be shot, and someone could possibly even die. In the teaser, the BAU and cops are seen in a police standoff with their weapons drawn.

"He thinks he's showing us that he's smarter than we are," Spencer Reid says.

In another clip, a deep voice is heard saying, "I will destroy you," while a man holding what appears to be a semi-automatic is shown.

A CBS press release also revealed that Kirsten Vangsness' character, BAU technical specialist Penelope Garcia, may not survive in the season finale, reported. Garcia will try to save her colleague from danger during a murdering spree targeting prostitutes. However, once she discovers the motives behind the mass killings, her life will also be in jeopardy.

In the finale, actor Esai Morales of "La Bamba" fame will reprise his role as BAU Section Chief Mateo Cruz to help the crew stop the serial killers behind these crimes. Plus, "Battlestar Galactica" alum Michael Trucco will make a guest appearance on at least the first part of the finale as Owen McGregor, while Brett Cullen will guest star as Preacher Mills.

The official synopsis of "Angels" that states, "When the BAU is called to Texas to consult on the murders of prostitutes, evidence points to killings with religious overtones," the official synopsis of "Angels" says according to "But as they delve further into the investigation, the team could put their lives at risk, on part one of the two-part ninth season finale,"

During a recent interview with TV Guide, executive producer Erica Messer dropped a few hints about what to expect in the finale.

"[It will be] one of the more twisted finales we've done," she said. "We broke it as a movie, so it's going to be action-packed from beginning to end."

Messer also warned that "someone might be in jeopardy."

"Angels" will air on Wednesday, May 7 at 9 p.m. EDT on CBS, and "Demons" airs on May 14.

Watch a preview of "Angels" below.