Mac and Friends: A Grave Mistake

Mac and Friends: A Grave Mistake is an animated Halloween television special released on October 15, 2001; it stars Mac, his friends, and incorporated parts of several episodes.

Plot
Mac and his friends goes out trick or treating as a witch until he comes across a haunted house. They cause many-a antic there. On the side, other Mac and Friends characters run into Halloween-typed situations themselves (including Marietta and her own encounter in the haunted house). In the end, Mac and his friends end up in a graveyard and dance with a set of Halloween monsters.

In a epilogue, Mac and his friends walk home with Bumpy bringing a potion that makes candy.