Gavin refuses. But Eve whispers: “I already died in one timeline to save you. Let me save everyone now.”
Gavin, Ty, and Riley stage a rescue. In the fight, Riley is fatally wounded — but before she dies, she touches the bunker’s core and sees the entire history of the rifts. Her final words: “It’s not a machine. It’s a grave .”
Meanwhile, Josh reopens the rift in 2021, but Maya Singh double-crosses him, sending armed troops through first. A firefight erupts in 10,000 BC between Maya’s soldiers, Zane’s Keepers, and the survivors.
Josh must reopen the rift — but doing so will cost him years of his life.
Josh finally arrives through a collapsing rift, aged ten years (now played by a new actor, mid-30s). He looks at Gavin and Eve: “Dad… I saw how this ends. Only one of you can go home. The rest have to stay in the past — or time breaks.”
The survivors of the sinkhole discover that the 10,000-year gap isn't just a place — it's a battleground for the future of humanity. To get home, they must unite with an unlikely ally and make the ultimate sacrifice. Episode 301: “What the Rift Took”
We open moments after Season 2’s finale. Eve (Natalie Zea) watches in horror as the portal to 2021 closes, leaving her son Josh (Jack Martin) stranded on the other side. Meanwhile, Gavin (Eoin Macken) clutches his head — a new, violent vision floods his mind: not of the past, but of a future Los Angeles consumed by a second, deadlier sinkhole event.
Josh discovers another survivor trapped in 2021: (recurring actor), a scientist from the 1950s who stepped through a rift decades ago and has been hiding in plain sight. Paulo reveals the truth: The rifts are caused by a decaying “temporal anchor” buried deep beneath La Brea, a device built by an advanced prehistoric civilization (the “Ancestors”). If it fails, all of time collapses.
Zane reaches the heart first and tries to absorb its power, but the Ancestor’s spirit rejects him — he’s been corrupted by grief and control. The heart begins to shatter, causing time storms: mammoths appear in the bunker, modern guns turn to stone, and the sky tears open.
Riley’s vision guides them to an underground cavern beneath the original sinkhole — the resting place of the first Ancestor, a being who sacrificed herself to stabilize time. The “temporal anchor” is her preserved heart, pulsing with energy.
10,000 years later, in the cavern, an archaeologist discovers the heart. She touches it — and hears Eve’s voice: “Tell them we made it home.”
Battle erupts at the cavern. Lucas sacrifices himself to destroy Maya’s command center, trapping her in a collapsing side rift (her fate left ambiguous). Ty and Veronica lead the survivors in a desperate last stand.
In 10,000 BC, the survivors explore the bunker and activate a holographic map. It shows multiple rifts across history — and a countdown: 72 hours until a “cataclysmic merge” where all timelines collide.
Gavin refuses. But Eve whispers: “I already died in one timeline to save you. Let me save everyone now.”
Gavin, Ty, and Riley stage a rescue. In the fight, Riley is fatally wounded — but before she dies, she touches the bunker’s core and sees the entire history of the rifts. Her final words: “It’s not a machine. It’s a grave .”
Meanwhile, Josh reopens the rift in 2021, but Maya Singh double-crosses him, sending armed troops through first. A firefight erupts in 10,000 BC between Maya’s soldiers, Zane’s Keepers, and the survivors.
Josh must reopen the rift — but doing so will cost him years of his life.
Josh finally arrives through a collapsing rift, aged ten years (now played by a new actor, mid-30s). He looks at Gavin and Eve: “Dad… I saw how this ends. Only one of you can go home. The rest have to stay in the past — or time breaks.”
The survivors of the sinkhole discover that the 10,000-year gap isn't just a place — it's a battleground for the future of humanity. To get home, they must unite with an unlikely ally and make the ultimate sacrifice. Episode 301: “What the Rift Took”
We open moments after Season 2’s finale. Eve (Natalie Zea) watches in horror as the portal to 2021 closes, leaving her son Josh (Jack Martin) stranded on the other side. Meanwhile, Gavin (Eoin Macken) clutches his head — a new, violent vision floods his mind: not of the past, but of a future Los Angeles consumed by a second, deadlier sinkhole event.
Josh discovers another survivor trapped in 2021: (recurring actor), a scientist from the 1950s who stepped through a rift decades ago and has been hiding in plain sight. Paulo reveals the truth: The rifts are caused by a decaying “temporal anchor” buried deep beneath La Brea, a device built by an advanced prehistoric civilization (the “Ancestors”). If it fails, all of time collapses.
Zane reaches the heart first and tries to absorb its power, but the Ancestor’s spirit rejects him — he’s been corrupted by grief and control. The heart begins to shatter, causing time storms: mammoths appear in the bunker, modern guns turn to stone, and the sky tears open.
Riley’s vision guides them to an underground cavern beneath the original sinkhole — the resting place of the first Ancestor, a being who sacrificed herself to stabilize time. The “temporal anchor” is her preserved heart, pulsing with energy.
10,000 years later, in the cavern, an archaeologist discovers the heart. She touches it — and hears Eve’s voice: “Tell them we made it home.”
Battle erupts at the cavern. Lucas sacrifices himself to destroy Maya’s command center, trapping her in a collapsing side rift (her fate left ambiguous). Ty and Veronica lead the survivors in a desperate last stand.
In 10,000 BC, the survivors explore the bunker and activate a holographic map. It shows multiple rifts across history — and a countdown: 72 hours until a “cataclysmic merge” where all timelines collide.