Plot summary
Kate kills her abusive stepfather, Wayne Janssen, and Diane Janssen turns her in. She escapes from Edward Mars when a horse causes a car crash and runs to her father Sam Austen, deducing that Wayne was actually her biological father. She admits that she killed him because she hated her lineage, and Sam gives her a head start before calling the authorities. In the present, Kate sees the horse on the island, and while tending to Sawyer, he briefly wakes and accuses her of killing him. Jack confronts her for shirking her computer duties and they kiss.
She returns to Sawyer, who briefly responds to "Wayne" before waking up as himself, and they see the horse together. Locke shows the orientation film to Eko, who gives him some film he found in the Arrow, which pieces together missing frames and reveals that using the Swan's computer improperly could result in another "incident." While on computer duty, Michael gets a message from Walt.
Credits
Adapted from Wikipedia contributors, Lost season 2. HTML formatting and reference markers removed.