Disney Channel is hosting a ** Whodunit?** weekend, complete with some mysterious episodes of some of your favorite shows! There's a new Dog with a Blog airing titled "Murder of the Ornamental Dress," and it looks like this episode is going to keep viewers on the edge of their seats.

Here's a description of the episode straight from the network: "When Avery's latest design gets ruined before a big fashion show, she must get to the bottom of who destroyed the dress."

Check out exclusive photos from the episode in the gallery, and let us know if you plan on tuning in Friday (July 24) at 9:30PM ET/PT.