Martin Mystery

The series re-imagines the comic books' main characters (Martin Mystery and Diana Lombard) as 16-year-old step-siblings attending Torrington Academy, a high school in Sherbrooke, Quebec. They work for a covert organization known as "The Center," which covertly protects the people of Earth from supernatural threats. Their allies at The Center include Billy (a small, green-skinned alien), who is one of Martin's best friends, and Java (a caveman from 200,000 years ago), who works as a janitor at Torrington Academy. Martin's vast knowledge of the supernatural and his remarkable intuition make him a valued agent of The Center, and compensate for his huge ego and poor personal hygiene. Diana resents these flaws at times, as Martin often does not seem to understand the seriousness of his missions, but generally loves him like any sister

Haunting of the Blackwater (Season 1 Episode 15)
The gang go to investigate a lodge that has a haunting going on inside. It turns out the owner of the place is the one haunting it and doesn't want anyone there. As they find clues along the way they encounter the ghost. Martin tries to trap it but it only ends up possessing Diana instead and starts chasing Martin and Java around but at the end everything goes back to normal.

The Vampire Returns ( Season 2 Episode 4 )
Martin and the gang visit France to investigate the strange disappearance of some teenagers, they encounter Simone de Bastien a  soul-sucking vampire who wish to resurrect her species, she notice that Martin resemble her deceased husband and hypnotize him. Billy, Diana and Java tried to sneak into the vampire's lair to rescue Martin, Simone awoke and hypnotized them into going to sleep.