The document provides an in-depth summary of the television show Lost:
1) Lost follows plane crash survivors stranded on a mysterious island, featuring flashbacks, flash-forwards, and time travel that complicate the narrative.
2) The characters all have dark pasts and personal demons that emerged before the crash.
3) Over time, connections are revealed between the initially stranger survivors as mysteries of the island are uncovered, such as the Smoke Monster and the Dharma Initiative.
4) Lost achieved mainstream success for ABC but maintained aspects of cult television through its devoted fan base who analyze clues and speculate on online forums.