Ep 6. The Other Woman

In Lost season 4 episode 6, entitled "The Other Woman," the story shifts focus to a character named Juliet Burke. The episode begins with a flashback to Juliet's life before she came to the island, showing her as a successful doctor who is recruited to a mysterious research project. It's clear that Juliet is unhappy in her current situation and is looking for a way out.

Back on the island, the focus is on a love triangle between Jack, Juliet, and Sawyer. Juliet tries to distance herself from Sawyer, who she previously had a romantic relationship with, and instead spends more time with Jack. It becomes clear that Jack is still struggling with his feelings for Kate, but Juliet encourages him to move on.

Meanwhile, the group becomes aware of a mysterious woman who seems to be working with the Others. This woman, whose name is revealed to be Harper, is a therapist who has been helping the Others cope with the death of one of their own. When Juliet confronts Harper, it becomes clear that Harper knows more about Juliet's past than she should.

As the episode progresses, it becomes clear that Harper is working with Ben, the leader of the Others, and that she was sent to the island to keep an eye on Juliet. We learn that Ben has a specific plan for Juliet, and that her relationship with Jack is central to that plan.

At the same time, the survivors begin to learn more about the mysterious smoke monster that has been seen on the island. They discover that the monster is associated with a group of people who lived on the island before the crash of Oceanic Flight 815. Daniel, one of the survivors, suggests that the group may be from the future, which raises even more questions about the island's true nature.

Overall, "The Other Woman" is an intense episode that focuses on the mythology of the show and the relationships between the characters. It's a reminder that for all the action and adventure on the island, Lost is ultimately a story about people and their relationships with each other.