The 30th season will feature the first-time theme of "Worlds Apart," with castaways divided into the three separate tribes, White Collar, Blue Collar and No Collar.

White Collar castaways strip down and embrace their free-spirited "no collar" tendencies. Blue Collar castaways disagree when it comes to heavy lifting at camp, and one castaway struggles to adapt to her new tribemates. (TV-PG L)

A division of labor causes cracks in the hard-working Blue Collar tribe. Also, one castaway's strategy during the immunity challenge completely backfires. (TV-PG D, L)

Tribes drop their buffs in a switch that will shake up alliances. Also, one castaway struggles after receiving a blow to the head, and another castaway's desire to flex his power in the game could be his greatest weakness. (TV-PG L)

One castaway struggles to fit in after a shocking tribal council. Also, winning a reward gives one castaway a new outlook on life and the game. (TV-PG L)

Alliances are tested as castaways must adapt to playing an individual game after the merge. Also, castaways fight for individual immunity in a classic game of endurance. (TV-PG L)

Castaways walk a fine line and struggle to stay balanced at a reward challenge. Also, one castaway goes on a crazy man hunt to prevent another castaway from finding the idol. (TV-PG L)

One castaway breaks out their arts and crafts skills to create a fake idol and makes a plan to prevent being eliminated. (TV-PG L)

A key advantage gives one castaway a game-changing opportunity, and another castaway lashes out when their integrity is questioned. (TV-PG L)

A twist at the immunity challenge creates a two-way race for security in the game, and one castaway uses his entire body as a bridge during a reward challenge. Also, a crazy tribal council becomes confrontational. (TV-PG L)

A reward gives castaways an opportunity to deliver supplies to a local orphanage. Also, castaways must scramble after a crazy tribal council leaves some on the outs. (TV-PG L)

With only six castaways left in the game, immunity is more important than ever. Also, castaways are puzzled at a tough reward challenge and a strong alliance begins to crumble. (TV-PG L)

After 39 days, one castaway will be crowned sole Survivor and take home the million dollar prize. Also, emotions run deep when castaways receive a surprise visit from their loved ones, on the two-hour season finale. (TV-PG L)

In a "Survivor" first, the results of the fan vote for the 20 castaways who will compete in the fall edition will be revealed live by host and executive producer Jeff Probst. (TV-PG L)