The Cost of Living (Lost)

"The Cost of Living" is the 5th episode of the third season of Lost, and the 54th episode overall. It aired on November 1, 2006, in the US, averaging 16.07 million viewers, and on December 5, 2006, in the UK, being watched by 1.15 million viewers. The episode was written by Monica Owusu-Breen and Alison Schapker and directed by Jack Bender. The plot centers on the character of Mr. Eko (Adewale Akinnuoye-Agbaje), who in flashbacks shows how he became a priest replacing his dead brother Yemi (Adetokumboh M'Cormack), and in the present day events is haunted by visions of Yemi while other castaways decide to visit a Dharma Initiative station.

The episode was written to finish Eko's character arc as Akinnuoye-Agbaje had requested to leave the show while finishing the second season. Reviewers subsequently praised "The Cost of Living" while considering that the departure of Eko made Lost lose one of its best characters.