| "Do No Harm" | |
|---|---|
| Lost episode | |
| Episode no. | Season 1 Episode 20 |
| Directed by | Stephen Williams |
| Written by | Janet Tamaro |
| Production code | 118 |
| Original air date | April 6, 2005 |
| Running time | 43 minutes[1] |
| Guest appearances | |
| John Terry as Christian Shephard Zack Ward as Marc Silverman Julie Bowen as Sarah Clarence Logan as Minister John Tilton as Tux shop owner | |
"Do No Harm" is the twentieth episode of the first season of Lost. The episode was directed by Stephen Williams and written by Janet Tamaro. It first aired on April 6, 2005, on ABC.
While trying to make contact with the outside world from a plane discovered in the jungle tree canopy, Boone Carlyle (Ian Somerhalder) is critically injured when the plane suddenly shifts and crashes to the ground, so Jack Shephard (Matthew Fox) desperately tries to save his life. The flashbacks in this episode revolve around Jack's marriage to a former patient, Sarah (Julie Bowen).