High school best friends and science prodigies C.J. and Sebastian spend every spare minute working on their latest homemade invention: backpacks that enable time travel. But when C.J.’s older brother Calvin dies after an encounter with police officers, the young duo decide to put their unfinished tech to use in a desperate bid to save Calvin. From director Stefon Bristol and producer Spike Lee comes See You Yesterday, a sci-fi adventure grounded in familial love, cultural divides and the universal urge to change the wrongs of the past.