Justice League Unlimited: 3x8
The Great Brain Robbery
A mystic artifact causes Lex Luthor and the Flash to switch bodies.
3 - 1I Am Legion Sep. 17, 2005
3 - 2Shadow of the Hawk Sep. 17, 2005
3 - 3Chaos at the Earth's Core Sep. 24, 2005
3 - 4To Another Shore Sep. 24, 2005
3 - 5Flash and Substance Feb. 11, 2006
3 - 6Dead Reckoning Feb. 18, 2006
3 - 7Patriot Act Feb. 25, 2006
3 - 8The Great Brain Robbery Mar. 04, 2006
3 - 9Grudge Match Mar. 11, 2006
3 - 10Far from Home Apr. 15, 2006
3 - 11Ancient History Apr. 29, 2006
3 - 12Alive! May. 06, 2006
3 - 13Destroyer May. 13, 2006