The three teams are taken to the Amazon, where their eighteen-hour challenge awaits. One team ends up in deep trouble due to a teammate's poor judgment, giving them their first loss and giving another team their first win. Meanwhile, one contestant begins to realize someone might not return their friendship, but brushes it off after being rescued. After the host reveals the votes, causing someone's heartbreak, he then reveals that the episode was actually a reward challenge, sparing a contestant from elimination.
