You will Watch The Grim Adventures Of Billy and Mandy Season 2 Episode 7 online for free episodes with HQ / high quality. Stream cartoons The Grim Adventures Of Billy and Mandy Episode 15 Son of Nergal: Billy and Mandy are sent to “Winter Camp”, where they meet Nergal’s son (and Billy’s cousin), Nergal Junior. Just like his father, Junior tries making friends, although not in the best way possible. Junior attacks the campers, freezes them and, using his shape-shifting abilities, takes over their appearances. In the end, Billy decides to be Junior’s friend, but he is scared away at the moment Junior shows him his true form.
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