Marg Helgenberger Returning to CSI for 300th Episode

Catherine Willows will come back to help the team with a cold case

Cat is back! Sure, Marg Helgenberger was rarely called "Cat" on CSI, but it's the excitement that counts.

CBS announced today that on the drama series' landmark 300th episode (Oct. 23), Catherine Willows will make her triumphant return to her old stomping grounds.

After the team investigates the murder of a reclusive former casino mogul who was a suspect in a similar crime in 2000, Willows is brought back to help solve the cold case that has haunted the CSI gang for 14 years.

Soon after the news broke, Helgenberger posted an adorable photo on her Twitter of her posing with the cast and crew. "Very excited to see my pals @CSI_CBS for the 300th!" she tweeted.

Helgenberger left the CBS procedural staple back in January 2012 after 12 seasons to do more theater.

"I've been itching to get back on the stage, but it's been hard," she said. "It's kind of hard to comprehend. It's been a fifth of my life. From the pilot on it's been touched with magic dust, so I've been very aware of how special it's been."

Welcome back, Willows. We've missed you.

The 14th season of CSI will premiere Wednesday, Sept. 25 on CBS.