 Following a horrific plane crash, 48 survivors of Oceanic Flight 815 from Sydney, Australia to Los Angeles, California, USA find themselves on an uncharted tropical island in the South Pacific Ocean which is full of secrets, as they come to learn. The first day on the island is full of monsters, countdowns, screams, stories of the past and an unfolding love story between the quick-thinking Jack Shepherd, a doctor, and the level-headed Kate Austen, a mysterious young woman. Jack, Kate and Charlie, a British former rock music player and heroin junkie, venture into the jungle to locate the pilot cockpit to find the transponder and come up against a mysterious and unseen island "beast." Other survivors with mysterious pasts are introduced who are the mysterious Sayid, an Iraqi with personal demons; the bumblingly awkward Hurley; the determined John Locke; Sawyer is an unpleasant and unfriendly self-serving swindler and sociopath whom tests everyone s patience; Claire Littleton is a very pregnant Australian teenager; Jin and Sun Kwon are a bickering non-English speaking Korean couple; Michael Dawson is a friendly guy whom is overprotective of his estranged 10-year-old son Walt; and Shannon is a egoistical, spoiled rich girl whom quarrels with her estranged older half-brother Boone.