| Season 1 | Episode 1 | The Big Apple Mystery | 2007-09-22 | 12 min |
| Season 1 | Episode 2 | The Missing Pickle Car Mystery | 2007-09-22 | 12 min |
| Season 1 | Episode 3 | The Mystery Wheel | 2007-09-29 | 12 min |
| Season 1 | Episode 4 | Busytown Blue-Bottoms | 2007-09-29 | 12 min |
| Season 1 | Episode 5 | The Mystery of the Lost Parrot | 2007-10-04 | 12 min |
| Season 1 | Episode 6 | The Monster Mystery | 2007-10-04 | 12 min |
| Season 1 | Episode 7 | The Trouble with Bubbles | 2007-11-07 | 12 min |
| Season 1 | Episode 8 | Little Orphan Egg | 2007-11-07 | 12 min |
| Season 1 | Episode 9 | The Lighthouse Ghost Mystery | 2007-11-08 | 12 min |
| Season 1 | Episode 10 | Cornfield Confusion | 2007-11-08 | 12 min |
| Season 1 | Episode 11 | The Sticky Stuff Mystery | 2007-11-09 | 12 min |
| Season 1 | Episode 12 | Up, Up and Away | 2007-11-09 | 12 min |
| Season 1 | Episode 13 | Six Little Muffins | 2007-11-10 | 12 min |
| Season 1 | Episode 14 | The Crashing Cans Mystery | 2007-11-10 | 12 min |
| Season 1 | Episode 15 | The Invisible Cake Snatcher | 2007-11-11 | 12 min |
| Season 1 | Episode 16 | On the Move | 2007-11-11 | 12 min |
| Season 1 | Episode 17 | Litterbug Busters | 2007-11-12 | 12 min |
| Season 1 | Episode 18 | There Might Be Giants | 2007-11-12 | 12 min |
| Season 1 | Episode 19 | Where's Junior? | 2007-11-13 | 12 min |
| Season 1 | Episode 20 | The Secret Club Mystery | 2007-11-13 | 12 min |
| Season 1 | Episode 21 | The Playground Mystery | 2007-11-14 | 12 min |
| Season 1 | Episode 22 | The Crazy Clock Mix-Up Mystery | 2007-11-14 | 12 min |
| Season 1 | Episode 23 | The Cheese Car Chomp Mystery | 2007-11-15 | 12 min |
| Season 1 | Episode 24 | Where's the Hero? | 2007-11-15 | 12 min |
| Season 1 | Episode 25 | The Mystery of the Unbreakable Bread | 2007-11-16 | 12 min |
| Season 1 | Episode 26 | The Twisty Line Mystery | 2007-11-16 | 12 min |
| Season 1 | Episode 27 | Chain of Mysteries | 2007-11-17 | 12 min |
| Season 1 | Episode 28 | The Mystery of the Unfinished Painting | 2007-11-17 | 12 min |
| Season 1 | Episode 29 | The Pretty Park Mystery | 2007-11-19 | 12 min |
| Season 1 | Episode 30 | The Missing Museum Statue Mystery | 2007-11-19 | 12 min |
| Season 1 | Episode 31 | The Vanishing Tiara Mystery | 2007-11-20 | 12 min |
| Season 1 | Episode 32 | The Postage Stamp Mystery | 2007-11-20 | 12 min |
| Season 1 | Episode 33 | The Bank Note Mystery | 2007-11-21 | 12 min |
| Season 1 | Episode 34 | The Flying Saucer Mystery | 2007-11-21 | 12 min |
| Season 1 | Episode 35 | The Smudged Letter Mystery | 2007-11-22 | 12 min |
| Season 1 | Episode 36 | The Mystery Present | 2007-11-22 | 12 min |
| Season 1 | Episode 37 | The Falling Fruit Mystery | 2007-11-23 | 12 min |
| Season 1 | Episode 38 | The Dragon Hunters | 2007-11-23 | 12 min |
| Season 1 | Episode 39 | The Disappearing Swimming Hole | 2007-11-24 | 12 min |
| Season 1 | Episode 40 | The Forgotten Fire Hose Mystery | 2007-11-24 | 12 min |
| Season 1 | Episode 41 | The Disappearing Home Mystery | 2007-11-25 | 12 min |
| Season 1 | Episode 42 | The Flipping, Flying, Slipping, Sliding Mystery | 2007-11-25 | 12 min |
| Season 1 | Episode 43 | The Mystery of the Unpopular Pizzeria | 2001-11-27 | 12 min |
| Season 1 | Episode 44 | The Silly Scarecrow Mystery | 2007-11-27 | 12 min |
| Season 1 | Episode 45 | Huckle, Where's My Apple Car? | 2007-11-28 | 12 min |
| Season 1 | Episode 46 | The Dirty Laundry Mystery | 2007-11-28 | 12 min |
| Season 1 | Episode 47 | The Eight Shoes Mystery | 2007-11-29 | 12 min |
| Season 1 | Episode 48 | The Something in the Woods Mystery | 2007-11-29 | 12 min |
| Season 1 | Episode 49 | The Borrowed Book Mystery | 2007-11-30 | 12 min |
| Season 1 | Episode 50 | The Mystery of the Missing Mystery Books | 2007-11-30 | 12 min |
| Season 1 | Episode 51 | The Mystery of the High Jumper | 2007-12-01 | 12 min |
| Season 1 | Episode 52 | The Mystery of the Summer Snowman | 2007-12-01 | 12 min |
| Season 2 | Episode 1 | The Mystery of the Mumbling Mummy | 2009-11-14 | 12 min |
| Season 2 | Episode 2 | The False Alarm Mystery | 2009-11-14 | 12 min |
| Season 2 | Episode 3 | The Sandcastle Squasher | 2009-11-21 | 12 min |
| Season 2 | Episode 4 | The Strange Ski Tracks Mystery | 2009-11-21 | 12 min |
| Season 2 | Episode 5 | The Mislaid Sketchbook Mystery | 2009-11-21 | 12 min |
| Season 2 | Episode 6 | The Hot and Cold Mystery | 2009-11-21 | 12 min |
| Season 2 | Episode 7 | The Missing Cookie Coupon Mystery | 2009-11-21 | 12 min |
| Season 2 | Episode 8 | The Mystery of the Broken Boat | 2009-11-21 | 12 min |
| Season 2 | Episode 9 | The Disappearing Dolly Mystery | 2009-11-28 | 12 min |
| Season 2 | Episode 10 | The Vanishing Vehicle Mystery | 2009-11-28 | 12 min |
| Season 2 | Episode 11 | Now You See It, Now You Don't | 2009-11-28 | 12 min |
| Season 2 | Episode 12 | The Mystery of the Missing Pirate Gold | 2009-11-28 | 12 min |
| Season 2 | Episode 13 | Mysterious Color-Changing T-Shirt | 2009-11-28 | 12 min |
| Season 2 | Episode 14 | The Metal Finger Mystery | 2009-11-28 | 12 min |
| Season 2 | Episode 15 | Mystery of the Lost Camera | 2009-12-05 | 12 min |
| Season 2 | Episode 16 | The Jellybean List Mystery | 2009-12-05 | 12 min |
| Season 2 | Episode 17 | The Vanishing Hopscotch Mystery | 2009-12-05 | 12 min |
| Season 2 | Episode 18 | The Hidden Treasure Mystery | 2009-12-05 | 12 min |
| Season 2 | Episode 19 | The Busytown Lake Monster Mystery | 2009-12-05 | 12 min |
| Season 2 | Episode 20 | The Bad Driver Mystery | 2009-12-05 | 12 min |
| Season 2 | Episode 21 | The Flattened Field Mystery | 2009-12-12 | 12 min |
| Season 2 | Episode 22 | The Flying Potatoes Mystery | 2009-12-12 | 12 min |
| Season 2 | Episode 23 | The Red Spot Painter Mystery | 2009-12-12 | 12 min |
| Season 2 | Episode 24 | The Teeny Weeny Piano Mystery | 2009-12-12 | 12 min |
| Season 2 | Episode 25 | The Lost Key Mystery | 2009-12-12 | 12 min |
| Season 2 | Episode 26 | The Door Knocker Mystery | 2009-12-12 | 12 min |
| Season 2 | Episode 27 | The Totally Fishy Mystery | 2010-09-18 | 12 min |
| Season 2 | Episode 28 | The Radio Message Mystery | 2010-09-18 | 12 min |
| Season 2 | Episode 29 | The Numbered Papers Mystery | 2010-09-25 | 12 min |
| Season 2 | Episode 30 | The Sour Milk Mystery | 2010-09-25 | 12 min |
| Season 2 | Episode 31 | The Delayed Delivery Mystery | 2010-10-02 | 12 min |
| Season 2 | Episode 32 | The Busytown Fairies Mystery | 2010-10-02 | 12 min |
| Season 2 | Episode 33 | The Mystery of the Lost Bag | 2010-10-09 | 12 min |
| Season 2 | Episode 34 | The Flat Tire Mystery | 2010-10-09 | 12 min |
| Season 2 | Episode 35 | Huckle Unlocks a Mystery | 2010-10-16 | 12 min |
| Season 2 | Episode 36 | The Messy Car Mystery | 2010-10-16 | 12 min |
| Season 2 | Episode 37 | The Achoo Mystery | 2010-10-23 | 12 min |
| Season 2 | Episode 38 | The Missing Laundry Mystery | 2010-10-23 | 12 min |
| Season 2 | Episode 39 | The No News Today Mystery | 2010-10-30 | 12 min |
| Season 2 | Episode 40 | The Big Tooth Mystery | 2010-10-30 | 12 min |
| Season 2 | Episode 41 | The Big 10 Mystery | 2010-11-06 | 12 min |
| Season 2 | Episode 42 | The Whistle Blower Mystery | 2010-11-06 | 12 min |
| Season 2 | Episode 43 | The Mystery Invitation | 2010-11-13 | 12 min |
| Season 2 | Episode 44 | A Spoon Full of Mystery | 2010-11-13 | 12 min |
| Season 2 | Episode 45 | The Whoop Whoop Whoop Mystery | 2010-11-20 | 12 min |
| Season 2 | Episode 46 | The Missing Mayor Mystery | 2010-11-20 | 12 min |
| Season 2 | Episode 47 | The Apple Orchard Spaceman Mystery | 2010-11-27 | 12 min |
| Season 2 | Episode 48 | The Pick and Run Mystery | 2010-11-27 | 12 min |
| Season 2 | Episode 49 | The Sleepytown Mystery | 2010-12-04 | 12 min |
| Season 2 | Episode 50 | The Mystery of the Switched Cars | 2010-12-04 | 12 min |
| Season 2 | Episode 51 | The Admiral Hornblast's Nameplate Mystery | 2010-12-11 | 12 min |
| Season 2 | Episode 52 | The Secret Spy Ring Mystery | 2010-12-11 | 12 min |
