An epic adventure begins when a massive sinkhole opens in the middle of Los Angeles, pulling hundreds of people and buildings into its depths. Those who fell in find themselves in a mysterious and dangerous primeval land, where they have no choice but to band together to survive. Meanwhile, the rest of the world desperately seeks to understand what happened. In the search for answers, one family torn apart by this disaster will have to unlock the secrets of this inexplicable event to find a way back to each other.
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The peak run. Top 40% of seasons by average rating — consecutive, with an average of 6.82.
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Eoin Macken
Gavin Harris
Chiké Okonkwo
Ty Coleman
Zyra Gorecki
Izzy Harris
Rohan Mirchandaney
Scott Israni
Lily Santiago
Veronica Castillo
Josh McKenzie
Lucas Hayes
Jon Seda
Sam Velez
All 30 episodes plotted by IMDb rating
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This may take a moment for shows with many seasons.
10 episodes • 2021Avg: 6.5
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Pilot | Sep 28, 2021 | 6.8 |
| 2 | Day Two | Oct 5, 2021 | 6.6 |
| 3 | The Hunt | Oct 12, 2021 | 6.2 |
| 4 | The New Arrival | Oct 19, 2021 | 6.6 |
| 5 | The Fort | Oct 26, 2021 | 6.3 |
| 6 | The Way Home | Nov 2, 2021 | 6.3 |
| 7 | The Storm | Nov 9, 2021 | 6.1 |
| 8 | Origins | Nov 16, 2021 | 6.5 |
| 9 | Father and Son | Nov 23, 2021 | 6.4 |
| 10 | Topanga | Nov 30, 2021 | 6.8 |
14 episodes • 2022Avg: 6.8Golden Era
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | The Next Day | Sep 27, 2022 | 7.7 |
| 2 | The Cave | Oct 4, 2022 | 6.3 |
| 3 | The Great Escape | Oct 11, 2022 | 6.9 |
| 4 | The Fog | Oct 18, 2022 | 6.8 |
| 5 | The Heist | Oct 25, 2022 | 6.7 |
| 6 | Lazarus | Nov 1, 2022 | 7.0 |
| 7 | 1988 | Nov 15, 2022 | 6.7 |
| 8 | Stampede | Jan 31, 2023 | 6.7 |
| 9 | Murder in the Clearing | Jan 31, 2023 | 6.8 |
| 10 | The Return | Feb 14, 2023 | 6.8 |
| 11 | The Wedding | Feb 21, 2023 | 6.7 |
| 12 | The Swarm | Feb 21, 2023 | 6.7 |
| 13 | The Journey (1) | Feb 28, 2023 | 6.7 |
| 14 | The Journey (2) | Feb 28, 2023 | 6.9 |
6 episodes • 2024Avg: 5.7Valley of Despair
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Sierra | Jan 9, 2024 | 7.2 |
| 2 | Don't Look Up | Jan 16, 2024 | 4.9 |
| 3 | Maya | Jan 23, 2024 | 5.5 |
| 4 | Fire Storm | Jan 30, 2024 | 5.6 |
| 5 | The Road Home (1) | Feb 6, 2024 | 5.4 |
| 6 | The Road Home (2) | Feb 13, 2024 | 5.7 |
