A CSI: Crime Scene Investigation revival could be on its way, with a few original stars set to return and set in the city that started it all.

CSI: Crime Scene Investigation ran for 15 seasons on CBS, was frequently the most-watched TV series in the world, and spun off three separate, successful franchises — CSI: Miami, CSI: NY and CSI: Cyber.

Now, 20 years after the show first made its premiere, CBS is set to bring the multi-billion dollar franchise back for a limited revival series.

According to The Hollywood Reporter, CBS is currently in talks with CSI: Crime Scene Investigation series creator Anthony Zuiker, who produced all four CSI television shows, as well as CSI producer Jerry Bruckheimer and the show’s creative team to revive the police procedural with a new limited series.

The revival has reportedly tapped Elementary’s Jason Tracey to write the script, with William Petersen — who played series’ lead Gil Grissom for 10 seasons and returned for CSI’s two-hour series finale in 2015 — in talks to be among the original stars eyed for a possible return for the revival series. The CSI: Crime Scene Investigation revival is said to be set in Las Vegas, where the original series first began.

The original CSI: Crime Scene Investigation first premiered on October 6, 2000 and starred William Petersen, Marg Helgenberger, George Eads, Ted Danson, Laurence Fishburne, Elisabeth Shue, and Jorja Fox. It ran for 15 seasons at CBS, concluding with a two-hour long finale that brought back many of the previous stars from the earlier seasons.

During that 15 season run, it garnered an estimated world audience of over 73.8 million viewers and was named the most-watched show in the world six times at the Festival de Télévision de Monte-Carlo, making it the most watched show for more years than any other show. When the series ended its run in 2015, it was, at the time, the seventh-longest-running scripted U.S. primetime TV series.

At this point, it’s unclear whether the potential revival would debut on CBS or CBS All-Access.