Jack Shephard (Matthew Fox), John Locke (Terry O'Quinn) and Kate Austen (Evangeline Lilly) learn about the mysterious hatch from Desmond Hume (Henry Ian Cusick).

On the other side of the island, Michael Dawson (Harold Perrineau), James "Sawyer" Ford (Josh Holloway) and Jin-Soo Kwon (Daniel Dae Kim) are imprisoned by people they believe to be the "Others."

After spending the night together, Helen wakes up to find Locke getting dressed, claiming he is uncomfortable sleeping in an unfamiliar bed.

He then met a man who enlisted his help in his sole duty: entering a code into the computer every 108 minutes (notably, 108 is the sum of the numbers 4, 8, 15, 16, 23 and 42).

He directs Jack and Locke to watch a short orientation film from 1980, narrated by a scientist named Dr. Marvin Candle (François Chau).

Candle describes a multi-research project created in 1970 by Gerald and Karen DeGroot and funded by Alvar Hanso, called the DHARMA Initiative and states the name and rough purpose of the hatch as an electromagnetic research station of DHARMA called "The Swan", the third of six similar stations built by them.

Candle also warns the viewers about using the computer for anything else but the film suddenly cuts to him wishing good luck.

Ana Lucia suddenly grabs Sawyer's gun and calls for the guard (Adewale Akinnuoye-Agbaje), revealing herself to have been planted in the pit to gain information from the prisoners.

The solution they found was shooting the computer, which would create a crisis and tension as the device needed to be repaired in 108 minutes, and also allow for new information to be given "on the fly".

[2] This episode marks the first appearance of series regular Mr. Eko, played by Adewale Akinnuoye-Agbaje, where he was only shown briefly, knocking down three of the show's main characters with a stick.