The world's over. Unless Sabrina can figure out a way to turn back time.
Dustin tries to escape Starcourt with the others, while Nancy and Eleven lead a fight against the Mind Flayer.
Claudia tries to stop her father Ego from dying in '87. Back in '54, Ulrich gets a visit from a familiar face.
Elliot is planning on deleting everything: not only Mr. Robot, but himself, too.