The trailer for Earthling.
Judith is a teacher going through a crisis. She can't get pregnant, and it's causing a rift in her life. On an orbital space platform, a crew picks up a strange object during a routine mission. It appears to be a living seed of some sort. One of the astronauts comes in contact with the seed causing a PULSE that sends a global brown-out on Earth.
Judith is drastically affected. Dreams begin. She's haunted by visions of the astronaut who survived the encounter with the seed pod. Eventually a group of people having the same dream locate her. They slowly realize that they are members of a stranded alien race, living on Earth disguised as humans. After many years, they'd forgotten what they were. They band together to seek out the seed, which may be a way back home.