The 48 survivors of a mid-air plane disaster dazedly gather their wits about them in the opening episode of the ABC hit series Lost. Marooned on an island somewhere in the Pacific, the survivors must now rely upon their inner strength -- and each other -- to stay alive, having been stripped of virtually all vestiges of civilization. Making matters worse is the island's harsh, almost impenetrable terrain and bizarre variety of animal life. Emerging as the most prominent of the castaways in the opener are Jack (Matthew Fox), a somber doctor who frantically helps survivors who are clinging to life, and Kate (Evangeline Lilly), a beautiful and mysterious survivor who seems to be a concerned do-gooder. The two meet when she reluctantly agrees to suture a wound on his back despite having no medical experience. On the first night after the crash, the survivors are terrified by the loud animal-like roar of something large rustling around in the jungle -- even the trees shake with its presence. The next day, along with washed-up rock star Charlie (Dominic Monaghan), Kate and Jack venture out to find the front end of the plane -- and hopefully the plane's transceiver (radio transmitter) -- in the jungle. This two-hour pilot episode was originally telecast in two separate installments.