Episode Title:Meet Dr. Quease.Episode Description:Donatello sneaks out to watch a lecture by his favorite eccentric biologist, Dr. Cornelius Quease. The Rank captures the doctor for his knowledge regarding the science of mutation, and Donatello tries to convince the Turtles to rescue the doctor. When Donatello decides to go it alone, he finds that Dr. Quease has been swayed by the gift of a state-of-the-art laboratory provided by the Dragon Lord, and the Turtles initiate a rescue mission to save Donatello. They save their brother, but Quease remains under the employ of the Dragon Lord.