4 - 1Brainwashed Pt. 1: Brain, Brain, Go Away Sep. 14, 1998
4 - 2Brainwashed Pt. 2: I Am Not a Hat Sep. 15, 1998
4 - 3Brainwashed Pt. 3: Wash Harder Sep. 16, 1998
4 - 4To Russia With Lab Mice Sep. 21, 1998
4 - 6The Pinky And The Brain Reunion Special Sep. 21, 1998
4 - 7A Legendary Tail Sep. 28, 1998