Addison Season 2 Episode 20 - The Mystery of the Mean Girls Detective Agency
Episode(s)
- Episode 30 - The Double Mystery
- Episode 29 - The Fog Mystery
- Episode 28 - The Perplexing Parrot Mystery
- Episode 27 - The Mysterious Bleeps and Bloops
- Episode 26 - The Midnight Ninja Mystery
- Episode 25 - The Secret Admirer Mystery
- Episode 24 - The Mystery of the Lucha Grandma
- Episode 23 - The NotSoFishy Mystery
- Episode 22 - The Mystery of the Fairy Frog
- Episode 21 - The Musical Mystery
- Episode 20 - The Mystery of the Mean Girls Detective Agency
- Episode 19 - The Mystery of the Hidden Gem
- Episode 18 - The Mystery of the Suspicious Circle
- Episode 17 - The Missing Mammoth
- Episode 16 - Mystery of the Sneezy Snuffleies
- Episode 15 - The Case of the Curiously Missing Kitty
- Episode 14 - Mystery of the Runaway Robots
- Episode 13 - The Mystery of the Halloween Haunting
- Episode 12 - Mystery of the Birthday Brainteaser
- Episode 11 - The Mystery of the Shrinking Rink
- Episode 10 - The Mystery of the Missing Pteranodon
- Episode 9 - The Recycling Bandit
- Episode 8 - The Mystery of the Party Popper
- Episode 7 - The Mystery of the Ghostly GoKart
- Episode 6 - The Mystery of the Reluctant Racer
- Episode 5 - The Mystery of the Robot Rivalry
- Episode 4 - Scooped
- Episode 3 - The Case of the Curious Coin
- Episode 2 - The Mystery of the Maleficient Mosquitoes
- Episode 1 - The Mystery of the Headless Haunter