The Lost pilot reportedly cost between $10 million and $14 million, making it one of the most expensive television pilots ever produced at the time. Over six seasons and 121 episodes on ABC from 2004 to 2010, the series redefined serialized network drama and won the Emmy for Outstanding Drama Series for its first season.
Each round presents 10 randomized questions from a pool of 50, with four multiple-choice options and instant feedback after every answer. Your final score comes with a performance tier and shareable results.
You'll revisit the Dharma Initiative and its utopian research stations, the cursed numbers 4, 8, 15, 16, 23, and 42, the core survivors Jack, Kate, Sawyer, and Locke, the show's revolutionary flash-forwards and flash-sideways, and the polarizing church-set finale that still splits Lost fans today.
The numbers are core values of the Valenzetti Equation, a formula predicting humanity's extinction, and are used as the code entered every 108 minutes in the Swan station. Hurley won the lottery using them before boarding Flight 815, triggering what he saw as a curse.
The Dharma Initiative was a utopian research project founded in the 1970s by Gerald and Karen DeGroot and funded by Alvar Hanso. It built a series of scientific stations on the island to study electromagnetism, psychology, zoology, and a mysterious anomaly called the Incident.
The May 2010 finale 'The End' revealed that the flash-sideways timeline was a purgatory-like waiting space where the characters reunited in death. Some viewers embraced the emotional church farewell while others felt it left the island's biggest mysteries unresolved.
Last updated: April 2026