Lost - Season 6 - Eps 15: Across the Sea
Jacob and the Man in Black are revealed to be twin brothers. They are raised by a mysterious woman who is charged with protecting the island. As revenge for the murder of their adoptive mother (who killed their real mother), Jacob throws his brother into the source of electromagnetism after being made the island's guardian, which transforms the Man in Black into the smoke monster.
About Lost
Title: Lost
First Air Date: 2004-09-22
Last Air Date: 2010-05-23
Status: Ended
Rating: 7.945/10 (from 4835 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