Back to the Future 2

Martin (Michael J. Fox) has just returned to the real world to reunite with his girlfriend. Dr. Brown (Christopher Lloyd) anxiously takes them to the future world 30 years later. It turns out that this time, two of Martin's future children are imprisoned for participating in robbery, and the doctor wants to work with Martin to prevent the tragedy. After some dealings, the two children were successfully saved. However, when the three returned to the real world, they found that earth-shaking changes had taken place around them. The world was controlled by Bev (Thomas F. Wilson). Martin's father George died tragically, and his mother Lorraine (Lea Thompson) turned out to be Bev's wife! All this happened because the secret of the time machine was accidentally discovered by the future old Bev. He secretly went back to cause trouble, and as a result, the whole world was under his control! Martin and the doctor once again embark on a journey through time, hoping to get the world back on track.