S4 E1 • Brainwashed (1): Brain, Brain, Go Away

Pinky and Brain are kidnapped in Washington, DC by an unknown force. Brain loses his memory and the mice are then imprisoned in a town where everyone is forced to perform the Schëerskåhøvên, which is dumbing down the entire country.

Première diffusion : 14 septembre 1998

S4 E2 • Brainwashed (2): I am Not a Hat

Brain regains his memory and the mice escape. They believe Snowball is responsible for the Schmëerskåhøvên, but him imprisoned in a mental institution.

Première diffusion : 15 septembre 1998

S4 E3 • Brainwashed (3): Wash Harder

The mice and Snowball search for the one who spliced their DNA, Dr. Mordough, thinking he's responsible for all this. But it turns out to be his cat, Precious, and time is running out.

Première diffusion : 16 septembre 1998

S4 E4 • To Russia with Lab Mice

Pinky and Brain's plan to alter caviar with a mutating capsule is complicated by a Russian lab mouse.

Première diffusion : 21 septembre 1998

S4 E5 • Hickory Dickory Bonk

Brain plots to make every clock on Earth chime repeatedly.

Première diffusion : 21 septembre 1998

S4 E6 • The Pinky and the Brain Reunion Special

A special of highlights of their career is on the air, but it's really all a ruse so Pinky and Brain can hypnotize the viewers.

Première diffusion : 21 septembre 1998

S4 E7 • A Legendary Tail

Inspired by legends of the past, Brain tries to create a legend about himself to gain world acclaim.

Première diffusion : 28 septembre 1998

S4 E8 • Project B.R.A.I.N.

How Acme Labs became home to Pinky and Brain.

Première diffusion : 28 septembre 1998

S4 E9 • Star Warners

In the series finale of Pinky and the Brain, the Brain, and the characters from Animaniacs develop a Star Wars spoof.

Première diffusion : 14 novembre 1998