The 38th season, themed “Edge of Extinction", features 18 castaways divided into two equal tribes, The Manu Tribe and The Kama Tribe. Four returning players join the 14 castaways who are competing for the first time. The returning castaways are Joe Anglim (“Worlds Apart,” “Second Chance”),Aubry Bracco (“Kaoh Rong,” “Game Changers”),Kelley Wentworth (“Second Chance,” “San Juan del Sur”) and David Wright (“Millennials vs. Gen-X”). This season presents a new layer to the game with the introduction of the island known as “Edge of Extinction,” which severely tests the will of the castaways to be the Sole Survivor and what they are willing to endure to make that happen. Those who can withstand the emotionally and physically difficult challenge will be afforded a shot at one of them to get back in the game and continue their quest for $1 million.

• Jeff Probst