chunk: That evening, a government agent takes Klaatu to Barnhardt. Klaatu explains that the people of the other planets have safety concerns now that humanity has developed rockets and a rudimentary form of atomic power. Klaatu declares that if his message is ignored, "Earth will be eliminated". Barnhardt agrees to gather scientists from around the world at the spaceship; he then suggests that Klaatu give a harmless demonstration of his power. Klaatu returns to his ship that night, unaware that Bobby has followed him. Bobby sees Gort knock out two sentries and "Mr. Carpenter" enter the spaceship.