Juliet's life on the island is depicted in flashbacks. A week after she arrives in mid-September 2001, she begins to receive therapy with Harper Stanhope (Andrea Roth). Their first discussion is cut short when Ben presents her with a new home in the Barracks. Juliet later has an affair with Harper's husband Goodwin (Brett Cullen). Harper finds out and warns Juliet that Ben will deliver consequences because Ben has a crush on Juliet. Goodwin is eventually murdered after his infiltration of the tail section survivors was discovered. In October 2004, Ben invites Juliet over for what he initially describes as a dinner party, but it is actually a date. Ben leads Juliet to Goodwin's impaled corpse, where Juliet accuses Ben of wanting Goodwin to die, prompting Ben to unveil his true feeling for her and claim her to be his.
In late December 2004, Daniel and Charlotte sneak off during the night to find the Tempest. Jack Shephard (Matthew Fox) and Juliet pursue them. Juliet is approached by what appears to be Harper, who tells Juliet that Daniel and Charlotte are going to kill everyone on the island by deploying a lethal gas and that Ben is ordering Juliet to kill Daniel and Charlotte.
Kate comes across Daniel and Charlotte in the jungle on her way back from the Barracks and Charlotte knocks her unconscious. After Jack and Juliet find her, Jack cares for Kate and Juliet takes off alone for the Tempest. Inside the station, Juliet finds Daniel in a hazmat suit typing frantically at a computer terminal and asks him to terminate what he is doing. Daniel and Charlotte explain that they are not trying to kill anyone; they are trying to save them by rendering the gas inert. Jack and Kate arrive and Kate examines the station, while Jack takes the ward outside the Tempest with Juliet. Juliet explains to Jack that there is going to be a war between the freighter crew and Ben. She thinks that Ben will win. She fears for Jack because Ben thinks she is his possession, but Jack shows no worry and kisses her.
In the Barracks, Ben bargains with John Locke (Terry O'Quinn) for his freedom. Ben reveals that the offshore freighter called the Kahana is owned by Charles Widmore (Alan Dale)—the father of Desmond Hume's (Henry Ian Cusick) girlfriend Penny (Sonya Walger)and that Widmore intends to exploit the island. After handing Locke a file containing information concerning Widmore, Ben tells Locke who his spy on the freighter is. Locke frees Ben from captivity, however, Ben continues to reside in the Barracks.
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