When does Martin Mystery return?

Martin Mystery is an animated television series based on the Italian comic book Martin Mystère. The series premiered on YTV on 1 October 2003 in its originating country of Canada. It uses an art style similar to Japanese anime.
The series re-imagines the comic books' main characters Martin Mystery and Diana Lombard as teenage stepsiblings attending Torrington Academy, a boarding school in Sherbrooke, Quebec. They work for a secret organization known as "The Center" which covertly protects the people of Earth from supernatural threats and investigates the unknown and the paranormal.