Eighteen castaways compete against each other on SURVIVOR, the Emmy Award-winning series, on Wednesdays on CBS Television Network. The 30th season, themed Worlds Apart, will separate contestants into three tribes: blue collar, white collar and no collar. The groupings of these tribes, each comprised of six castaways, reflect the distinguishing qualities that people bring to the game and test whether there is any truth to the pre-conceived notion that that certain characteristics will help you win the game of SURVIVOR. All castaways will compete to outwit, outplay, outlast and ultimately be crowned Sole Survivor. The show is hosted by Emmy Award winner Jeff Probst.