Matlock is returning for a third season on CBS - but who is and isn't returning after an investigation? The hit CBS series, which premiered in September 2024, follows a wealthy retired lawyer named Madeline Kingston (Kathy Bates) who pretends to be a poor widower named Matty Matlock to get a job at Jacobson Moore law firm. As it turns out, Matty thinks someone at the company is complicit in the opioid epidemic that resulted in her daughter's death. The season 1 finale ended with Olympia (Skye P. Marshall) confronting Julian (Jason Ritter) about the Wellbrexa documents.