For six seasons and 121 episodes, ABC’s Lost captivated audiences with its intriguing mysteries, complex characters and big-budget set pieces. The story of the Oceanic Flight 815 crash survivors and their adventures on a mysterious island was a huge hit when it premiered in 2004. The series managed to gain a massive cult following that was dedicated to deciphering the show’s many mysteries.
Though reception became more polarized as the series progressed, critics and fans generally agreed that Lost was strong television throughout its run, consistently ranking it as one of the best shows of all time. Here is a ranking of all six seasons of Lost based on their Rotten Tomatoes score.
6. Season 6 – 68
The final season of Lost was either a masterpiece that honored the series’ legacy or a massive dud that made the entire show a complete waste of time, depending on the person asked. The culmination of six seasons of buildup, the final confrontation between the survivors and the island’s evil Smoke Monster, saw many beloved characters meet their fates and finally answered the main question of why they were all brought to the island in the first place. In addition, a new timeline in which the crash never happened was introduced and brought forth even more mysteries to the fold.
Many of the season’s individual episodes were well received, but the finale really divided people. Some critics enjoyed the grand spectacle of the final battle and the emotional character moments. Still, the revelation of the true nature of the alternate timeline and what the series was truly about left many unsatisfied. The backlash and debate over Lost‘s ending was fierce — long before Game of Thrones and How I Met Your Mother met the same uproar when they ended — and it’s a conversation that is still being held today.
5. Season 3 – 71
Season 3 of Lost is definitely a tale of two seasons in one. To avoid reruns to help ratings, Season 3 was comprised of two uninterrupted blocks: six episodes in the Fall, followed by sixteen episodes in the Spring. Both covered the battle between the survivors and The Others, the island’s original inhabitants. The first six episodes received the most criticism for their slow-pace, unlikeable new characters and introducing more mysteries without solving them fast enough. Season 3 also has the dubious distinction of having some of the show’s worst episodes.
Despite the latter half of the season receiving more praise, including the game-changing season finale, it was clear that Lost was going in circles without a proper endgame in mind. The negative reception prompted the show’s creators to set an end date for the series along with much shorter future seasons.
4. Season 4 – 88
After floundering in the previous year, Lost found its footing again in Season 4, thanks to a tighter balance between character drama and sci-fi spectacle. With a mysterious freighter coming to the island, the survivors must deal with unwelcomed new guests while finding a way to finally get back home. Unlike the previous three seasons, which followed both an island storyline and flashbacks to a specific character’s life, Season 4 embraced a flash-forward storyline that detailed the lives of certain survivors that made it off the island.
This new storytelling model helped freshen things up while still sticking to the signature Lost formula. Add in more explosive action and some of the best twists since the show’s early days, and Season 4 served as a strong start to the series’ final episodes.
3. Season 5 – 90
By the time Season 5 came around, Lost had leaned more heavily into its sci-fi elements and its own mythology than any season before it. After being teased in earlier seasons, time travel took center stage as the survivors who made it off the island returned to save those they left behind, only for some to get lost in the 1970s. Those stuck in the past helped shape the island’s history, while those in the present had to deal with the first real emergence of the human form on the Smoke Monster as he prepared to destroy the island.
Despite some critics beginning to get frustrated with the increasingly ludicrous mythology, reviews for Season 5 were strong thanks to its solid character drama and thrilling action.
2. Season 1 – 94
Every great show has to start somewhere, and Lost‘s first season started with a literal bang thanks to a bombastic pilot directed by J. J. Abrams. Season 1 introduced fans to the survivors, the mysterious hatch and offered brief glimpses into The Others and the Smoke Monster. This blend of character drama and intense action made Lost an instant hit with critics, who often pointed out that there was nothing else like it on network television at the time.
Season 1 was much more focused on its characters rather than the island’s mythology compared to later seasons. Though the mysteries kept people guessing, learning about how the survivors ended up together and the secrets they brought with them was the true heart of the show at the beginning.
1. Season 2 – 100
Following up a strong start is never easy, but Lost managed to pull off a second season that packed a real punch. While some of the survivors got separated, the rest contended with the emerging threat of The Others while also solving the mystery of the underground hatch and the abandoned DHARMA Initiative. In addition, new survivors were added to the core group, and one of the series’ best villains made their debut.
Season 2 took everything great about the first season and expanded on it. The mysteries got deeper, the twists more shocking and the backstory revelations more intriguing. While not every episode was a winner, the majority of Season 2 featured some of the strongest Lost episodes, as well as some of its most shocking moments.
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