As a storm brews in the mountains, the people of Jackson Hole prepare for the worst amid increased sightings of Infected. Meanwhile, Abby weighs her options.

Five years after the events in Salt Lake City, a now 19-year-old Ellie makes a discovery while on patrol with her best friend Dina. Back in Jackson Hole, Joel seeks…

Clarke struggles to survive on a desolate, scorched earth while her friends in space come across a long-awaited beacon of hope.

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