Episode list

Clarke and her friends must risk everything to fight one last battle for survival, only to glimpse an even darker threat to the last living valley on earth.

After being betrayed by Lexa, Clarke makes a final stand against Mount Weather, while Jaha shocks Murphy as they continue their journey to the City of Light.

It's a race against the end of the world as Praimfaya arrives forcing our heroes to make impossible decisions to ensure their survival.

Octavia fights in the final battle for survival, but not everyone is willing to play fair.

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

As the remaining members of the 100 face off against the Grounders, Jaha makes a noble sacrifice to ensure the Ark makes it to Earth.

Camp Jaha butt heads over what to do with Finn, as flashbacks show his and Raven's relationship on the Ark.

Bellamy leads the charge investigating a potential way home. Meanwhile, Clarke and Madi deal with the new, uncertain threat to their home.

As Jaha and Murphy encounter a perilous obstacle on their journey, Raven and Wick try to figure out how to disable the acid fog, and Bellamy races against time as his cover is blown.

As the Grounder army prepare to attack Mount Weather, a desperate Cage turns to Dante for help, and Raven and Wick experience a major setback.