A man living in the 23rd Century works at a remote "lighthouse" in space that serves as a beacon to help passing ships.
Cast: Lena Headey, Stephan James, Wade Bogert-O'Brien, Natasha Mumba, Stephen Root, Jess Salgueiro, Ellen Wong, Bo Martynowska, Eric Lange, Daniel Malik, Carolina Bartczak, Marc Menchaca, Barbara Hershey, Cyrus Faird, A.J. Simmons, Sydney Ozerov-Meyer, Matilda Legault, Dylan Taylor
A procedure puts Halan face-to-face with Aleph. Harmony protects the beacon by any means necessary.
Imprisoned by the Sybarrans, Halan and Iris must work together to reclaim the beacon; Halan's past catches up to him.
Beacon Keeper Jocko welcomes a new trainee, a teenage Aster. Aster exposes Jocko's dark secret.
Emerging from the pocket universe, Dosto is strangely elusive about the whereabouts of his crew; Halan and Iris get a distress call.
Iris desperately tries to piece together what happened to the pilot, while Harmony deals with a rogue AI who followed her to Beacon 23.
Iris, keeper of Beacon 67, learns of Halan's distress on Beacon 23. Responding to the help signal, she is stunned by the Beacon's disrepair. As they repair the beacon, a strange occurrence leaves them confused and terrified.
Trapped within AI headquarters, Harmony must find a way to break free and return to Beacon 23.
Returning to Beacon 23, the inhabitants are still trapped under Aleph's watchful eye; after Aster's plan was cut short, Halan decides to see it through.