They Craved Duckman's Brain! - S3.E15

Duckman is cast in a hospital educational film with Joe Walsh; for his part he is put into a MRI chamber. The film crew is thrown out of the lab and Duckman forgotten. Left too long in the chamber, a mutation occurs which a doctor identifies as a cure for cancer. Now everyone wants Duckman's brain for their own purposes. Meanwhile, Agnes is still impersonating Grandma-ma.