Lost - Season 1 - Eps 18: Numbers
When Hurley becomes obsessed with the French woman and heads into the jungle to find her, Jack, Sayid and Charlie have no choice but to follow. Hurley flashes back to the hugely life-altering experience he had before boarding the plane.
About Lost

Title: Lost
First Air Date: 2004-09-22
Last Air Date: 2010-05-23
Status: Ended
Rating: 7.9/10 (from 4476 votes)
Language: EN
Seasons: 7
Total Episodes: 118
Network: ABC
Genres: Mystery, Action & Adventure, Drama
Production Companies: ABC Studios, Bad Robot, Touchstone Television
Synopsis
Stripped of everything, the survivors of a horrific plane crash must work together to stay alive. But the island holds many secrets.
Cast

Matthew Fox
Jack Shephard

Evangeline Lilly
Kate Austen

Terry O'Quinn
John Locke

Josh Holloway
James Sawyer

Michael Emerson
Benjamin Linus

Jorge Garcia
Hurley Reyes

Naveen Andrews
Sayid Jarrah

Jeff Fahey
Frank Lapidus

Nestor Carbonell
Richard Alpert

Henry Ian Cusick
Desmond Hume