After Michael and Sawyer accuse Jin of burning the raft and Michael begins beating him, Sun finally breaks her silence, screaming in English for them to stop.
In the Lost Season 1 episode (S1E17), the central "feature" is the deconstruction of communication barriers, both linguistic and emotional. The episode title itself completes the common idiom "lost in translation," highlighting how much is misunderstood between characters despite their shared experiences. The Revelation of Sun's Secret [S1E17] ...In Translation
This episode serves as the turning point for Jin-Soo Kwon. The flashbacks reveal that his "villainous" behavior—working as a violent enforcer for Sun's father, Mr. Paik—was actually a desperate sacrifice to be with Sun. On the island, he begins his redemption by joining Michael to help rebuild the raft, uttering his first English word: "Boat" . After Michael and Sawyer accuse Jin of burning