After yet another prank from Bart, involving flooding the gym, principal Skinner talks to Homer and Marge and advices them to make Bart take a new behavior drug, called Focusyn. At first Bart doesn't want to take the drug, but pretty soon he doesn't mind and it actually seems to work: Bart stops playing pranks, actually pays attention in class and reads in his spare time. Good times don't last and Bart starts behaving very strange and paranoid.
—Marco van Hoof <k_luifje7@hotmail.com>