Martin Mystery Episode 20 - The Return of the Beasts Episode Title:The Return of the Beasts.Episode Description:Diana and Martin remember how they first met Java. Martin got two days of detention for releasing frogs from a container, and Diana ends up in detention as well even though she did nothing wrong. She also has to help him catch the frogs which are still in the classroom. An evil paleontologist, Dr. Dolphus, recreates mutant dinosaurs to take over the Earth, and he creates Java.