'Lockdown' by Carlton Cuse and Damon Lindelof

When the hatch suddenly takes on a life of its own, Locke is forced to enlist the help of an unlikely ally. Meanwhile, Ana Lucia, Sayid and Charlie go off into the jungle to find out the truth about Henry...

Matthew Fox (Doctor Jack Shephard), Evangeline Lilly (Kate Austen), Dominic Monaghan (Charlie Pace), Harold Perrineau (Michael Dawson), Jorge Garcia (Hugo ‘Hurley’ Reyes), Josh Holloway (James ‘Sawyer’ Ford), Daniel Dae Kim (Jin Kwon), Yunjin Kim (Sun Kwon), Naveen Andrews (Sayid Jarrah), Terry O'Quinn (John Locke), Emilie de Ravin (Claire Littleton), Adewale Akinnuoye-Agbaje (Mr. Eko), Michelle Rodriguez (Ana Lucia), Cynthia Watros (Libby), Kevin Tighe (Cooper), Katey Sagal (Helen), Michael Emerson (Henry Gale), Andrea Gabriel (Nadia), Geoffrey Rivas (Father Chuck), Theo Coumbis (Jimmy Bane)

Directed by Stephan Williams
Produced by Sarah Caplan
Executive Producers J.J. Abrams and Bryan Burk

TX (US): 29th March 2006

Notes:
*Featuring Jack, Kate, Locke, Charlie, Sayid, Sawyer, Michael, Hurley, Jin, Sun and Claire