The 100

In the seventh and final season premiere, Clarke (ELIZA TAYLOR) and her friends attempt to rebuild Sanctum as a new threat rises in the woods.

Echo (series star TASYA TELES) and Gabriel (new series regular CHUKU MODU) learn more about Hope (new series regular SHELBY FLANNERY) and her mysterious past.

As Raven (series star LINDSEY MORGAN) faces an unexpected threat, Clarke must keep the peace among opposing factions in Sanctum.

Mysterious outsiders arrive with news of Clarke's missing people.

Octavia gets to know a whole new world. Meanwhile, Murphy and Emori play make believe.

Clarke and her friends find themselves on a planet that is not what it seems.

Emori (recurring guest star LUISA D'OLIVEIRA) tries to heal Sanctum's old familial wounds while Echo, Octavia and Diyoza (recurring guest star IVANA MILICEVIC) struggle with new ones. Series star Lindsey Morgan directs.

While Clarke confronts a new adversary, a surprising connection takes us back to the past and the nuclear apocalypse that destroyed the Earth.

While old friends make new allegiances, Murphy and Indra (recurring guest star ADINA PORTER) must defuse a tense situation.

Sheidheda makes his move. Meanwhile, a Disciple goes rogue.

Where in the universe is Bellamy Blake (series star BOB MORLEY)?

It's a new day in Sanctum. Meanwhile, Clarke, Octavia, Raven and Echo struggle with a new foe.

The Red Sun derails Clarke's plans.

Clarke and her friends reckon with all that has happened, only to find a new unexpected threat looming. Recurring guest star JESSICA HARMON directs.

Clarke and Octavia mount a desperate rescue mission as the Disciples close in on what they want.

After all the fighting and loss, Clarke and her friends have reached the final battle in the series finale. But is humanity worthy of something greater?