Stream the full Back to the Future Season 2 Episode 10 movie online for free in crystal-clear HD quality. No downloads required—just press play and enjoy the action, complete with English subtitles for an enhanced viewing experience.
Back to the Future: Every twenty-five years, the Kahooey comet passes Earth and that time is again drawing near. Many look forward to it, but Biff is going on about alien invasions � claiming that he witnessed their ship in the sky in 1967. It's bad enough that people believe him and start panicking, but then he finds that very same ship on Doc's property. Biff's paranoia spreads and everyone accuses Doc of being an alien in disguise, which Marty and the Brown family know cannot be true. They need proof, though, so Marty and the boys take the DeLorean to 1967 to investigate the truth behind Biff's claims and the nature of the ship. Proof is easy enough to come by, but completely cleaning up this mess ultimately requires an alien approach.