"There's No Place Like Home, Parts 1, 2 & 3" is the season finale of the American Broadcasting Company's fourth season of the serial drama television series ''Lost'', consisting of the 12th through 14th episodes. They are also the 84th through 86th episodes of the show overall. The three constituent episodes were split into two broadcasts; "Part 1" first aired on May 15, 2008 and "Part 2", serving as the two-hour season finale of the fourth season, first aired on May 29, 2008 on ABC in the United States and on CTV in Canada. The episodes were written by executive producers/show runners Carlton Cuse and Damon Lindelof; "Part 1" was directed by co-executive producer Stephen Williams, while executive producer Jack Bender directed "Part 2". The title is a reference to ''The Wonderful Wizard of Oz''.
The narrative takes place in late December 2004, 100 days after the crash of Oceanic Flight 815. The survivors of the crash team up with the Others, natives of the island where the plane crashed, to confront the mercenaries from the freighter ''Kahana'', who have come to the island. Following this, some of the survivors escape the island and Ben Linus (Michael Emerson) moves the island. Flashforwards show the first actions of the Oceanic Six, those who are rescued, after returning home in January 2005, and their lives in late 2007. The cliffhanger from the previous season finale, "Through the Looking Glass," is resolved by revealing John Locke (Terry O'Quinn) to be dead and in the coffin that Jack Shephard (Matthew Fox) visits in that episode.
Production and broadcast of the fourth season were interrupted by the 2007–2008 Writers Guild of America strike and following its resolution, the writers were unable to compress the remainder of season four into the five allotted episodes and the season finale was extended by one hour. Subsequently, the production schedule was compressed and post-production work was completed in three weeks, instead of the usual two months.
The second part was watched by 12 million Americans, making ''Lost'' the most watched show of the week, for the first time in the show's history. Both parts were met with critical acclaim. Matthew Fox's acting in his flashforward scenes was praised, as was Michael Giacchino's musical score. The latter part of the episode was nominated for an Emmy Award for editing, but did not win.