Dr. Vincent Robeson is developing research of improvement of the brain at the Museum of Science and Natural History, His subject is Harry Braeden, who has the IQ of 58 only. When his friend, Dr. Maxwell, arrives at his laboratory, Dr. Robeson explains his research of brain enhancement. In the basement, Dr. Robeson shows an antique trephinator that could exchange brain and spinal column fluids, making the subject more intelligent. Harry overhears the explanation and, when Maxwell leaves the place, Harry subdues Dr. Robeson and transfers his fluids to him. When Ryan receives a correspondence about the trephinator, he learns that Dr. Robeson bought the cursed equipment and they go to the Museum to retrieve the trephinator. Jack meets Dr. Viola "Vi" Rhodes in the Museum, and he becomes happy to see her since Vi was his fiancée twenty years ago. Ryan learns that Dr. Robeson died and his assistant, Stewart Pangborn, is ahead of his experiments. But soon they learn that Pangborn is Harry Braeden, and he continues his crime spree to achieve more brains of scientists to increase his intelligence. Further, Vi is working with him.
"Brain Drain" is a good episode of "Friday the 13th: The Series", with a tragic story of a man with very low IQ that learns how to steal the intelligence of scientists using a cursed equipment. Poor Jack, that reunites with his beloved Dr. Viola Rhodes after twenty years and loses her in the end. Micki's attitude towards Jack, saying that she would not allow Jack to revert the process of Vi, is ridiculous. The sequence of episode in the DVD Box released in Brazil is different from IMDb. My vote is seven.
Title (Brazil): "Drenando o Cérebro" ("Draining the Brain")
