In a world transfixed by the discovery of a duplicate Earth in the sky, a brilliant young student named Rhoda, played by Brit Marling, sees her promising future shatter in a single tragic accident. Four years later, burdened by guilt and working a menial job, she seeks out John Burroughs, a composer portrayed by William Mapother, whose life was devastated by her actions. As Rhoda tentatively enters his isolated world under false pretenses, a fragile and unexpected connection begins to form. Meanwhile, the mysterious planet, dubbed Earth 2, grows ever larger in the heavens, raising profound questions of identity and second chances. This haunting and atmospheric drama, co-written by Brit Marling and directed by Mike Cahill, weaves a deeply personal story of grief and redemption against the backdrop of an awe-inspiring cosmic mystery, exploring whether we can ever truly escape our past or if another version of ourselves might exist somewhere among the stars.