After a furious battle with the aliens, General Hu Chen decides to send the robot back to the golden age of Kung Fu to learn the skills. When the Robot is trying to search for the seven flavors from delicacy, he finds out that the treasonous senior apprentice of Chenglin Zhou are planning something evil. At this moment, his battery is low. So he needs to make a choice between flying back to beat aliens or staying here revenging for his junior apprentice. Is the mission of saving the humanity going to be accomplished?