‘CSI: Immortality’ Teaser Promises Explosive Series Finale (Video)

Two hour conclusion of long-running CBS series airs Sept. 27

Last Updated: September 22, 2015 @ 3:29 PM

In a new teaser for the two-hour “CSI” series finale, we get our first look at the explosive conclusion of the popular CBS series.

In the finale, a bomber is plaguing Las Vegas, which forces former CSIs Gil Grissom (William Petersen), Catherine Willows (Marg Helgenberger) and Det. Jim Brass (Paul Guilfoyle) to return to Las Vegas to assist the team in solving the case. Lady Heather (Melinda Clarke), Grissom’s longtime acquaintance, becomes the prime suspect.

“CSI” first debuted on CBS in 2000 and became a ratings powerhouse. By its second season, it was among the top-rated shows on television.

Louis Shaw Milito is directing the finale, with series creator Anthony Zuiker penning the script. Zuiker also serves as executive producer, alongside Petersen, Jerry Bruckheimer and Cynthia Chvatal.

“CSI: Immortality” will air on CBS Sept. 27 at 9 p.m.

Watch the video.