Do No Harm (Lost)

Flashbacks show both the build-up to, and the event of Jack's wedding to Sarah, a former patient whom he "fixed" after she was injured in a car accident.

Jack thinks over his father's words, and eventually writes his vows just in time for the ceremony, finally settling on extolling how Sarah has "fixed" him.

Jack sends Kate Austen (Evangeline Lilly) off to get some alcohol from James "Sawyer" Ford (Josh Holloway).

Sayid Jarrah (Naveen Andrews) surprises Shannon Rutherford (Maggie Grace) with a "torchlit dinner".

Jack sends Charlie Pace (Dominic Monaghan) to find one of the other survivors with a matching blood type.

Jin-Soo Kwon (Daniel Dae Kim), while working on the new raft, hears Kate's call for help and rushes to her and Claire.

As Jack begins to turn pale Sun stops the transfusion because the blood is pooling in Boone's dead right leg.

In the original outline of the eleventh episode, Locke was to be accompanied by two guest characters to search for Claire and discover the Hatch.

According to executive producers Damon Lindelof and Carlton Cuse, Boone's death made sense from a story perspective to fuel the rivalry between Jack and Locke and lead to the events in the season finale.