VIDEO: Sneak Peek - 'Run, Steven Staven! Run!' Episode of CBS's TWO AND A HALF MEN

On the next episode of the CBS comedy Two and a Half Men entitled 'Run, Steven Staven! Run!', Alan and Lyndsey's relationship is strained when he won't give her a key to the beach house. Meanwhile, Walden, Alan, Billy and Herb commiserate about women and relationships, on TWO AND A HALF MEN, Thursday, Jan. 31 (8:31 - 9:01 PM, ET/PT) on the CBS Television Network. Willie Garson guest stars as Dr. Steven Staven, a gynecologist who takes Lyndsey on a date. Get a sneak peek below!

It's been a year since we saw Walden Schmidt, a lovelorn Internet billionaire, attempt to drown himself in the ocean after his wife kicked him out. He stumbled into the Malibu beach house where tightly-wound chiropractor Alan Harper and his slacker teenage son, Jake, had been living with Alan's brother for the past eight years before his untimely passing.

Walden bought the house and invited Alan to remain there, saving Alan from having to move in with his mother. Walden asked Berta, who had been working in the household, to stay as well. Despite his unsuccessful history with women, Alan found himself mentoring Walden. Walden, Alan and Jake adjusted to their new living arrangement and created a surrogate family unit to make each a better man ... or at least try.