Meet Tony Grobmeier, who was born without a corpus callosum, the structure that connects the two interdependent halves of our brains: language and linear thinking on the left, emotion and visual perception on the right. Next, enter the FlyLab at Caltech, where Michael Dickinson and his graduate students are researching the brain with help from Drosophila Melanogaster-a.k.a. the fruit fly. After that, find out how scientists are attempting to catch the brain in the act of decision making using an fMRI, a method of brain scanning that is revolutionizing our understanding of the science of decision making. Finally, meet a fascinating cast of robots, including NASA veterans like the Mars Exploration Rover and youngsters like the tool-wielding A.T.H.L.E.T.E. (All Terrain Hex-Limbed Extra-Terrestrial Explorer).