Lost Season 1, Episode 19, "Deus Ex Machina," is a critically acclaimed installment centering on John Locke's backstory, his tragic relationship with his father, and his efforts to open the island's hatch. The episode is marked by a pivotal discovery of a Beechcraft plane and a dramatic cliffhanger, earning high praise for Terry O'Quinn's performance. Read the full review at IMDb . "Lost" Deus Ex Machina (TV Episode 2005) - IMDb