S5·E14 Totally Mystery Much?

Scientists make a startling discovery in the Antarctic--a Yeti-like snow creature frozen in a block of ice! Meanwhile, Jerry informs Sam, Clover and Alex that there have been reports of a strange being terrorizing a posh ski resort. When they arrive to investigate the luxurious place, they find that they aren't the only ones on the case - they meet Martin Mystery, a teenage paranormal investigator working for The Center – an organization much like WOOHP! In the b-story, Clover is annoyed because the nerds get a crush on her, Sam discovers she looks like Martin's sister, Diana, and Alex falls for Martin.