Survivor: Game Changers β Mamanuca Islands is the 34th season of the American CBS competitive reality television series Survivor , featuring 20 returning castaways. This season was the third to film in Fiji. It was the fourth season to feature entirely returning players. This season introduced several alterations to the game format. The process for resolving a tied vote was changed for this season, removing the second ballot where only non-tied castaways were allowed to vote between the tied castaways and proceeding directly to the procedure to resolve a deadlocked tie: an open deliberation between non-tied voters. The format of the Final Tribal Council, in which jurors individually addressed the finalists by delivering a statement or asking questions, was changed to a moderated discussion between the finalists and jurors.

It's an epic showdown as two legends in SURVIVOR history set their sights on one another. Also, two castaways attempt to put their past behind them and start a new game while another castaway introduces the "spy shack" 2.0.

Survivors drop their buffs for a tribe swap, and the game starts from scratch for one set of castaways. Also, one castaway leaves his tribemates stranded in the ocean so he can search their camp for the immunity idol.

A dramatic twist in the game sends shockwaves through the tribes. Also, castaways are flying blind at a classic immunity challenge.

One castaway searches for an immunity idol they desperately need in order to stay in the game, and another castaway throws their game off balance after they lose their cool.

One castaway is left floating on Exile Island after a tribe switch, and the exiled castaway receives a surprise visit.

Emotions run high when the game begins to take a toll on one tribe, and castaways try to pull their way to safety at a physical immunity challenge.

The merge brings another twist in the game that leaves two castaways out of the celebratory feast.

Friends become enemies when one castaway is caught trying to sabotage another's game.

One castaway's alliance reacts after one of their own admits to flipping, and another Survivor must decide if they should reveal their secret advantage in the game to a trusted ally.

An emotional reward challenge brings loved ones together and one castaway receives invaluable advice from their special visitor.

Only six castaways will remain after two shocking tribal councils, and castaways pour their hearts into a challenge that could be the key to their safety.

The season of "Game Changers'' draws to a close, and one remaining castaway will be crowned the Sole Survivor.

The castaways reunite in Los Angeles to discuss the Game Changers season with Jeff Probst.