While in the Valley of Shadows the Robot is affected by strange forces and grows to the size of a building. Will and Dr. Smith enter the Robot to try to reverse the process and save him.
Did You Know?
When Professor Robinson and Major West first encounter the much-larger Robot in the Valley Of Shadows, there is nothing lying on the ground to the right of the hole in the bottom of the Robot's tread. When they walk up to the hole and the camera shot changes, there is a log lying to the right of the hole. See more
References Fantastic Voyage