The Expanse (2015)

1 - Fight or Flight

The Rocinante crew deals with the fallout over Naomis betrayal while caught in the middle of the war between Earth and Mars while Avasarala and Bobbie hatch an escape plan.

1 - New Terra

The crew of the Roci investigates a strange protomolecule ruin on an alien planet. Bobbie copes with civilian life on Mars. Drummer and Ashford battle with piracy in the Belt.

1 - Exodus

Holden tries to convince Fred Johnson to destroy the last sample of protomolecule. Naomi gets an important lead to her son. On Luna, Avasarala begins to hunt for Marco Inaros.

1 - Strange Dogs

The Rocinante crew make a startling discovery on an asteroid. Avasarala and Bobbie contend with the devastation on Earth. Drummer and her family must make a heartbreaking decision. On Ceres, Marco and Filips struggles turn inward.

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2 - IFF

The Rocinante answers an unexpected distress signal. Bobbie and Avasarala find themselves being hunted by a mysterious captor. UN Secretary-General Sorrento-Gillis brings in a colleague from his past to lend an ear during this crucial time of war.

2 - Jetsam

Avasarala is blindsided while on a visit to Mars. The Roci crew continue their protomolecule investigation while tensions between the RCE and Belters reach a tipping point. Drummer and Ashford track down a terrorist.

2 - Churn

Holden and Fred deal with infiltrators on Tycho. Drummers past comes back to haunt her. Amos returns to Baltimore. Alex and Bobbies investigation on Mars leads to rogue soldiers.

2 - Azure Dragon

With an unexpected passenger aboard the Rocinante, Holden and crew undertake a dangerous mission that could shift the balance of power in the war. Drummer decides to make an uneasy alliance. Filip wrestles with his guilt.

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3 - Assured Destruction

As Earth strategizes a costly ploy to gain advantage in the war against Mars, Anna struggles to convince Sorrento-Gillis to do the right thing. Avasarala and Bobbie seek refuge aboard the Rocinante.

3 - Subduction

New alien threats emerge on Ilus as Naomi battles health challenges on the planet. Bobbie searches for a missing person on Mars. Avasarala faces a new challenge in the UN.

3 - Mother

Naomi comes face to face with Filip. Holden and Fred turn the tables. Avasarala closes in on Marcos plot.

3 - Force Projection

Avasarala, with the Combined Fleet of Earth and Mars, takes the war to Marco. Filip and Marcos relationship is tested. The war becomes more perilous and personal for Holden and Naomi when the Rocinante is suddenly forced into a battle.

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4 - Reload

The Rocinante tends to wounded Martian soldiers in exchange for supplies. Avasarala struggles with how to disseminate a key piece of evidence despite being in hiding.

4 - Retrograde

Drummer and Ashford confront a dangerous person from Naomis past. Murtry hunts down a target. Bobbies makes a life-changing confession.

4 - Gaugamela

Marcos grand plan shocks Earth, Mars and the Belt.

4 - Redoubt

Holden finds himself at odds with his crew when a controversial decision is uncovered. On Ceres, Avasarala struggles to contain an escalating humanitarian crisis. Drummers growing faction stage a daring raid with dire stakes. Filip, demoted to repair skiff duty, makes an unexpected discovery.

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5 - Triple Point

The search for Praxs daughter comes to a head. Admiral Southers men plan for mutiny aboard the Agatha King

5 - Oppressor

As tensions on Ilus reach a boiling point, Holden reveals a secret. Avasarala debates Nancy Gao while an emergency on the Roci forces Alex and Naomi into action.

5 - Down and Out

Amos and Clarissa are trapped in a collapsed building. Naomi contends with her old family. Holden assembles a new crew on the Roci. Alex and Bobbie make a dangerous discovery in the Belt.

5 - Why We Fight

Paths converge on Ceres when Drummer and her fleet arrive to aid the relief effort. Holden tries to convince Avasarala to release crucial information that might avert catastrophe, but she has her own request of him. As Amos and Bobbie get a little R&R at the station, Naomi has a difficult and long-awaited reunion.

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6 - Immolation

The final battle between Earth and Mars threatens the very future of humanity. A new monster is unleashed on Prospero Station. Anna receives the smoking gun she needs.

6 - Displacement

The Roci crew prepares for an incoming disaster on Ilus. Ashford and Drummer close in on an enemy within the Belt. Bobbie takes on a dangerous job.

6 - Tribes

Holden and the Roci go on the hunt. Amos and Clarissa seek shelter on a devastated Earth. Bobbie and Alex fight a desperate battle. Marco makes Drummer an offer she cant refuse. Avasarala returns to a position of power.

6 - Babylon's Ashes

In the thrilling season finale, Inners and Belters fight side by side with the crew of the Rocinante in a last, massive, desperate battle with Marco and his Free Navy, with the fate of the Solar System, the Ring Gates, and of all humanity hanging in the balance.

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7 - Delta-V

All eyes turn to the edge of the solar system as a mysterious new presence emerges; Naomi recommits to her roots; Drummer butts heads with a seasoned new commander aboard the Behemoth; and a young Belter makes a name for himself.

7 - A Shot in the Dark

Naomi and Alex work to keep the Barbapiccola in orbit amidst a power outage. Avasarala faces a tough decision. Holden and Elvi race to find a cure for a disease spreading on Ilus.

7 - Oyedeng

Naomi makes a desperate attempt to save her son from Marco. On the Roci, Holden battles for the last sample of protomolecule.

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8 - It Reaches Out

An old friend taunts Holden with the answers he seeks. Naomi struggles to fit in. A mysterious low-level tech aboard the Thomas Prince enacts a terrifying plan.

8 - The One-Eyed Man

Avasarala faces fallout for the UNs military mission. Ashford and Drummer makes big decisions about their future within the OPA. A spreading illness on Ilus takes a toll on Amos. Alex and Naomis attempt to rescue the Barb turns desperate.

8 - Hard Vacuum

Amos returns to Baltimore with Clarissa. On Luna, Avasaralas alliances begin to shift. Alone and adrift, Naomi becomes a deadly lure.

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9 - Intransigence

The Rocinante seeks a new gameplan as they attempt to avoid capture. Melbas true motives are revealed. Naomi is torn between identity and ideal. Anna seeks a way to stay aboard the Thomas Prince.

9 - Saeculum

Holden and Miller race to save Ilus. Murtry puts his endgame into motion, putting the Roci crews lives at risk.

9 - Winnipesaukee

Amos, Clarissa, and a gang of thieves work together to leave Earth. Avasarala tries to head off a brutal military strike. Drummers new family bonds are tested as Naomis life hangs in the balance.

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10 - Dandelion Sky

Holden sees past, present, and future. A ghost from Melbas past threatens her mission. Bobbie struggles to trust an old friend as she leads a group into unchartered territory.

10 - Cibola Burn

Ashford closes in on an enemy while uncovering a dangerous plot. Avasarala faces a crossroads in her personal and political life. The Roci crew works to reestablish life on Ilus in the wake of a deadly catastrophe.

10 - Nemesis Games

Holden and the Roci face off against Marcos forces and Drummer, while Alex and Bobbie attempt a dangerous rescue of Naomi, and the balance of power in the Solar System shifts.

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11 - Fallen World

Drummer and Ashford find themselves trapped with few options for survival; Anna tends to the wounded masses as Melba continues to hunt down her prey; the Rocinante crew struggles to survive as Naomi reunites with her true family.

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12 - Congregation

As survivors arrive to the Behemoth, two factions form over how to handle a life-or-death threat. Holden grapples with what hes seen and the choices he must make.

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13 - Abaddon's Gate

Holden and his allies must stop Ashford and his team from destroying the Ring, and perhaps all of humanity.

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