Season 4

• Original Air Date: January 31, 2008
• Narrator: Michael Emerson

The fourth season Lost special, which provided an insightful glimpse into the lives of the survivors of Oceanic Airlines Flight 815.

• Original Air Date: January 31, 2008
• Flashforward: Hugo "Hurley" Reyes

As the survivors make contact with the freighter, they learn of Charlie's final message, and are split into two factions with Jack and Locke leading each side. Flashforwards give insight to Hurley's life after rescue.

• Original Air Date: February 7, 2008
• Flashback: Daniel Faraday, Miles Straume, Charlotte Lewis, Frank Lapidus and Naomi Dorrit

Four members of the freighter crew arrive on the island, and the survivors begin to question their intentions. The lives on the new arrivals is revealed, as is the outside world's discovery of Flight 815's wreckage.

• Original Air Date: February 14, 2008
• Flashforward: Sayid Jarrah

Sayid, Miles and Kate head to the Barracks in an attempt to rescue Charlotte from Locke's party, and a dark future for Sayid is revealed where he works as an assassin.

• Original Air Date: February 21, 2008
• Flashforward: Kate Austen

Kate assists Miles in speaking with Ben in order to make a deal, which causes tensions to mount with Locke. Kate's future is revealed as she is put on trial for her past crimes.

• Original Air Date: February 28, 2008
• Flashback: Desmond Hume

While traveling to the freighter, Desmond begins to experience certain time related side-effects, and must use the help of Daniel to correct the imbalance.

• Original Air Date: March 6, 2008
• Flashback: Juliet Burke

Juliet receives word Daniel and Charlotte are headed to the Tempest to release a deadly gas, and has been given to order to kill them. Meanwhile, Ben bargains with Locke for his freedom by providing information about the intentions of those aboard the freighter.

• Original Air Date: March 13, 2008
• Flashback: Jin-Soo Kwon / Flashforward: Sun-Hwa Kwon

Sun and Jin prepare to leave for Locke's camp, until Juliet reveals to Jin that Sun had previously had an affair. On the Kahana, Sayid and Desmond meet with the captain, and discover the identity of the spy aboard.

• Original Air Date: March 20, 2008
• Flashback: Michael Dawson

Sayid confronts Ben’s spy on the freighter, and Ben urges daughter Alex to flee Locke’s camp in order to survive an impending attack.

• Original Air Date: April 25, 2008
• Flashforward: Benjamin Linus

Keamy and the Kahana crew commence their attack on the Barracks in an attempt to extract Benjamin Linus. Meanwhile, the survivors discover the body of the Kahana's doctor, Ray, on the beach with his throat slit.

• Original Air Date: May 1, 2008
• Flashforward: Jack Shephard

Juliet diagnoses Jack with appendicitis and suggests an immediate surgery to remove his appendix. Meanwhile, Sawyer, Claire, and Miles continue their trek across the island to the beach camp.

• Original Air Date: May 8, 2008
• Flashback: John Locke

Locke, Ben, and Hurley continue their search for Jacob's cabin. Meanwhile, aboard the Kahana, tensions mount between those siding with Keamy and those siding with Gault.

• Original Air Date: May 15, 2008
• Flashforward: Oceanic Six

Ben, Locke and Hurley make their way to the Orchid station, only to discover that the freighter team has already arrived. Jack and Sawyer make their way across the island to track the helicopter. Sayid returns on the Zodiac raft, and turns it over to Daniel who begins ferrying survivors to the freighter. Meanwhile, flashforwards account for the aftermath of the Oceanic Six's rescue.

• Original Air Date: May 29, 2008
• Flashforward: Oceanic Six

Locke and Ben make their way into the Orchid station in an attempt to move the island. Michael and Jin remain on the Kahana in an attempt to disarm the explosives aboard. The Oceanic Six find their rescue, along with Desmond and Lapidus as they make contact with Penny's vessel.