VIDEO: Sneak Peek - Season Premiere of CBS's THE MENTALIST

On the sixth season premiere of CBS's The Mentalist titled 'The Desert Rose,' Jane and Lisbon secretly continue their dangerous mission to narrow down the list of seven Red John suspects as they investigate the murder of a man who was missing for two years.

The episode airs Sunday, Sept. 29 (10:00-11:00 PM, ET/PT) on the CBS Television Network. Michael Gaston returns as CBI Director Gale Bertram. Josie Davis guest stars as Sonya, a waitress at a truck stop, and Lauren Stamile ("Grey's Anatomy") guest stars as Madison Yardley, the murder victim's wife. Get a sneak peek below!

The Mentalist stars Golden Globe Award nominee Simon Baker as Patrick Jane, an independent consultant with the California Bureau of Investigation (CBI), who has a remarkable track record for solving serious crimes by using his razor-sharp skills of observation. Within the Bureau, Jane is notorious for his blatant lack of protocol and his semi-celebrity past as a psychic medium, whose paranormal abilities he now admits he feigned. His last act in playing a psychic was to challenge the serial killer Red John on television. The killer then murdered Jane's wife and daughter and now Jane longs for revenge, even as the CBI continues to try to bring Red John to justice. Jane's role in cracking a series of tough, high-profile cases is greatly valued by his fellow agents; however, no-nonsense Senior Agent Teresa Lisbon alternates between reluctantly acknowledging Jane's usefulness and blasting him for his theatrics, narcissism and dangerous lack of boundaries. Lisbon's team includes agents Kimball Cho, Wayne Rigsby and Grace Van Pelt, who all think Jane's a loose cannon but admire his charm and knack for clearing cases.