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Seasons & Episodes
1. The Big Apple Mystery
A giant wooden apple on the fruit store sign falls off and no one knows where it went.
2. The Missing Pickle Car Mystery
When Mr Frumble's newly painted green Pickle Car mysteriously disappears, Huckle determines he will find it and solve the Mystery of the Pickle Car Puzzle.
3. The Mystery Wheel
When Huckle, Lowly and Sally discover a missing wheel by the roadside, Huckle determines he will solve the Mystery of the Missing Wheel by figuring out what the wheel is missing from.
4. Busytown Blue-Bottoms
Several Busytown characters are dismayed to discover blue paint stains on the back of their clothing.
5. The Mystery of the Lost Parrot
When a lost parrot shows up at the park, Huckle and Lowly decide to find its owner.
6. The Monster Mystery
When the gang find strange footprints, Sally fears they were made by a monster.
7. The Trouble with Bubbles
Two identical tanker trucks pull into Gramps Gas Station at the same time. Shortly after, Huckle and his pals notice cars spewing bubbles and conking out.
8. Little Orphan Egg
Huckle, Lowly and Sally find an abandoned egg in the park. They search for a nest that has similar-looking eggs.
9. The Lighthouse Ghost Mystery
Regardless of Hilda Hippo's photo of a ghost in the mansion by the lighthouse, Huckle sets out to prove there are no such thing as ghosts.
10. Cornfield Confusion
A sign directing customers to a sweet corn stand comes loose and swings upside down so the arrow points the opposite way.
11. The Sticky Stuff Mystery
Glue creates a sticky situation in Busytown.
12. Up, Up and Away
Pig Won't and a hundred helium balloons disappear.
13. Six Little Muffins
Hilda's fresh-baked muffins mysteriously disappear.
14. The Crashing Cans Mystery
The gang try to determine why someone is knocking over stacks of cans in Mr. Cat's shop.
15. The Invisible Cake Snatcher
Huckle, Lowly and Sally's science project vanishes from inside a locked room.
16. On the Move
Huckle helps Sally track down her missing scooter.
17. Litterbug Busters
Using clues found in the litter, Huckle hunts down a litterbug.
18. There Might Be Giants
The gang sets out to prove that Busytown is not being invaded by giant robots.
19. Where's Junior?
Huckle and his friends search for missing Junior Monkey.
20. The Secret Club Mystery
Huckle and his pals join a secret club.
21. The Playground Mystery
Huckle, Lowly and Sally must figure out why playground items keep disappearing.
22. The Crazy Clock Mix-Up Mystery
The Busytown clocks go crazy.
23. The Cheese Car Chomp Mystery
Something takes a big bite out of the Mouse family's cheese car.
24. Where's the Hero?
Huckle and his friends search for the hero who rescued Granny Goat.
25. The Mystery of the Unbreakable Bread
Huckle, Lowly and Sally are determined to find out why every loaf of bread in Busytown is as hard as concrete.
26. The Twisty Line Mystery
Twisty road lines create a traffic problem.
27. Chain of Mysteries
Someone takes drastic measures to stop the noisy squeaks in Busytown.
28. The Mystery of the Unfinished Painting
Huckle and his friends return an unfinished portrait to the artist who lost it.
29. The Pretty Park Mystery
Huckle and his friends return an unfinished portrait to the artist who lost it.
30. The Missing Museum Statue Mystery
A statue made of butter disappears from the Busytown Museum.
31. The Vanishing Tiara Mystery
A trapeze artist's tiara disappears.
32. The Postage Stamp Mystery
Huckle and his pals help Mr. Frumble find his prized postage stamp.
33. The Bank Note Mystery
Lowly and Sally team up to decipher a mysterious bank note's meaning.
34. The Flying Saucer Mystery
Huckle and his friends find a tiny flying saucer.
35. The Smudged Letter Mystery
Huckle, Lowly and Sally help Postman Pig deliver a letter with a smudged address.
36. The Mystery Present
The gang finds a wrapped gift without a name tag.
37. The Falling Fruit Mystery
A cherry tree mysteriously drops all of its fruit.
38. The Dragon Hunters
Huckle and his pals search for a dragon on the loose.
39. The Disappearing Swimming Hole
When they find their favorite swimming hole empty, Huckle, Lowly and Sally set out to find out where the water went.
40. The Forgotten Fire Hose Mystery
The gang helps the Busytown firefighters find their missing hose.
41. The Disappearing Home Mystery
Everything in the Raccoon family's house disappears.
42. The Flipping, Flying, Slipping, Sliding Mystery
Huckle and his pals try to figure out why things made of metal are flying around Busytown.
43. The Mystery of the Unpopular Pizzeria
When a popular pizzeria closes, the reason for it is a mystery.
44. The Silly Scarecrow Mystery
Pig Will and Pig Won't believe that a scarecrow is after them.
45. Huckle, Where's My Apple Car?
Lowly's pals help him find his missing apple car
46. The Dirty Laundry Mystery
Huckle, Lowly and Sally try to uncover why strange stains are appearing.
47. The Eight Shoes Mystery
Huckle, Sally and Lowly race to figure out who owns eight shoes.
48. The Something in the Woods Mystery
A mysterious creature is in the woods.
49. The Borrowed Book Mystery
Sally, Huckle and Lowly investigate a mysterious smudged signature in a library book
50. The Mystery of the Missing Mystery Books
A shipment of books goes missing.
51. The Mystery of the High Jumper
Someone who can jump high puts advertising stickers everywhere.
52. The Mystery of the Summer Snowman
A snowman appears on a summer day.
