Host Jeff Probst welcomes the players to the game as the new contestants react to the arrival of Coach and Ozzy. Christine says it's "nice" to see them but says right away that they are "temporary players". John - who asks to be called by his last name, Cochran - values their past experience in the game and thinks that they'll come in handy.
Ozzy and Coach draw eggs to determine which teams they will join, with Ozzy drawing the red Savaii tribe and Coach going to the blue Upolu tribe. Coach admits that he's not getting a good vibe from the group and vows to try twice as hard to break the ice with his tribe. However, Savaii gives Ozzy a much warmer welcome, hugging him and cheering as he approaches. Ozzy says that he was hoping to join them as they look like a good group that will play well.
Jeff then announces the first Hero Challenge, which requires Ozzy and Coach to square off. On Jeff's mark, they must climb to the top of a wooden pole to retrieve a wooden turtle, crawl under a log and then transfer puzzle pieces across a series of tables one piece at a time, placing smaller pieces on top of larger pieces. The first person to do so successfully and place his turtle on top will get flint for their team as well as a basket of taro root.
Ozzy seems to be making the quickest progress, though the complicated nature of the task slows both men down. They both receive help from their respective tribes, though Coach seems to be getting incorrect information. Ozzy then manages to successfully complete the challenge and is pronounced victorious as he goes to collect the group's reward.
The tribes are then given maps to their respective camps and head off down the beach to get set up. Arriving at their camp, Savaii celebrates having won fire. The group asks Ozzy for his advice on setting everything up given his past experience and he privately admits that he's trying harder this time around to set up a strategy that will help him win.
The team then gathers around to get to know one another. Semhar reveals that she's a spoken word poet and is asked to perform on the spot, which she does. Her display impresses Ozzy, who plans to approach her about perhaps working with her in an alliance. Ozzy then suggests that the group relaxes and goes swimming for a while before getting down to the hard work.
Because the group doesn't have swimsuits, Cochran is particularly upset about having to strip down to his underwear in order to go in the water because he thinks it will make him look like "more of a pathetic twerp" than he already does.
Over at Upolu, Ozzy vows to come "face to face" with his fear of not being accepted by his group because of his experience. He tries to lead the group in getting a shelter set up and promises them that he's not a threat and does not approach the game strategically. They then get started on collecting materials for building.
Edna is the only one who seems to appreciate Coach, calling him a "team player" and admiring that he is sharing little tips and tricks with the rest of the game. Christine offers to set off to look for firewood but instead goes to look for the immunity idol, which Coach susses right away.
Back at Savaii, the group is having a leisurely afternoon, with everyone sharing details of their personal life. However, Jim bluffs a bit, telling everyone that he is a teacher when secretly he wins poker tournaments and owns two medical marijuana dispensaries.
Dawn is happy that everyone has been bonding, but expresses worry that they don't have a shelter made towards the end of the day in case it rains that night. She also thinks that the group should have a leader and thinks that Ozzy is too "Bob Marley" to successfully do the job.
Brandon and Ozzy share a moment while gathering supplies over at Upolu, with Brandon explaining his "loco" neck tattoo, admitting that he used to be crazy but has since calmed down. He also admits that he is uncomfortable around Mikayla and doesn't agree with how she carries herself as she helps build the shelter.
That night, Coach gathers some of his group out on the beach to look at the stars and discuss strategy going forward. Coach says that first day alliances are the most solid, which everyone present - Brandon, Sophie, Rick and Albert - agrees with.
The next morning, Dawn has a "mini breakdown" because she didn't sleep well. However, Mark advises her to try and keep it under wraps as they are the oldest players and will automatically be discriminated against. She then goes to speak to Ozzy, saying that she feels she will go home because she is crumbling under the pressure.
However, he insists that her feelings have nothing to do with the game and are personal. Mark also vows to support her even though her crying will be seen as a weakness. While Ozzy seems to be receptive to her feelings, he privately confides that he believes she will be sent home if she doesn't "get it together".
The next day, the groups meet Jeff on the beach for the first immunity challenge. On his go, both tribes must race through zig zag pathways and a web of coconuts. All tribemates must get over a ten foot wall, where one player must dig up a machete and chop through ropes, releasing a bin of coconuts. Three other players must then shoot coconuts into a basket and must get enough in to raise the tribe flag. The first team to succeed will win immunity and will be safe at the first Tribal Council. The winners will also receive a clue as to the whereabouts of a hidden immunity idol.
Upolu manages to reach the wall first, forcing Savaii to try and play catch up. However, Upolu maintains a lead until the very end, when the teams square off to try and fill the basket with coconuts to raise their flags. While the competition heats up, Mikayla lands the final shot which grabs the win for Upolu, giving them immunity, the idol clue as well as flint for fire.
Returning to camp, the group celebrates but Christine says that there is an "uneasiness" beneath the surface now that everyone knows that the game has started and an immunity idol is at play. Stacey begins looking and walks right past it without realising it is in front of her.
Over at Savaii, the tone is slightly more sombre. Semhar apologises for losing the challenge for the group but accuses Jim of making her feel even worse by making faces in the aftermath. However, he insists that he has no problem with her and thinks that everyone gave 100%. Semhar later admits that her honesty may work against her in the game but that she can't help but speak her mind.
Swimming that afternoon, Ozzy tries to talk to a few of his teammates about who they'll vote for at the forthcoming Tribal Council. He mentions Cochran's lack of strength and tries to convince the group not to get rid of Semhar as the loss at the challenge was not her fault. Jim is less receptive, though, saying that it's worrying that Ozzy is so intent on keeping her around. Ozzy later advises Semhar to "do some politicking" in order to save herself.
Jim then tells Cochran about Ozzy's plan to vote him out, putting him in "high alert, paranoia mode". He goes to speak to Mark, who assures him that he will not vote him out and that he is well-liked in the group. Cochran is outraged at the "nightmare" that the game has already become as he thinks it's unfair that he would go home over other, weaker players.
At Tribal Council, the Savaii group lights their torches for the first time, signifying the true beginning of the game. After the votes are tallied, Semhar is eliminated with five votes and is sent to Redemption Island.
"I'm not even so upset that I was sent here, I was more upset that my tribal members lied to me. It shows me how fake they are. I don't understand how people can be so cold-hearted," she says following her exit.
Survivor: South Pacific airs Wednesdays on CBS