When no one can find where Junior Monkey went, Huckle, Lowly, and Sally are saddled with his baby sister while they try to solve the mystery. / Pig Will and Pig Won't invite their friends to become members of their secret club.
1. The Big Apple Mystery/The Missing Pickle Car Mystery
Aired: Sep 22, 2007A giant wooden apple on the fruit store sign falls off and no one knows where...
2. The Mystery Wheel/Busytown Blue-Bottoms
Aired: Sep 22, 2007Huckle, Lowly, and Sally discover a missing wheel by the side of the road. / ...
3. The Mystery of the Lost Parrot/The Monster Mystery
Aired: Sep 29, 2007Huckle and Lowly try to reunite a lost parrot with its owner. / Sally is conv...
4. The Trouble with Bubbles/Little Orphan Egg
Aired: Sep 29, 2007Two identical tanker trucks pull into Gramps Gas Station at the same time. Sh...
5. The Lighthouse Ghost Mystery/Cornfield Confusion
Aired: Oct 4, 2007Despite Hilda Hippo's photo of a ghost in the mansion by the lighthouse, Huck...
6. The Sticky Stuff Mystery/Up, Up and Away
Aired: Oct 4, 2007Busytown pedestrians are getting their feet stuck in purple goo. In solving t...
7. Six Little Muffins/The Crashing Cans Mystery
Aired: Nov 6, 2007Hilda invites her friends over for muffins, but someone keeps taking them, on...
8. The Invisible Cake Snatcher/On the Move
Aired: Nov 6, 2007When the cake Huckle, Lowly, and Sally plan on using in their Science Fair ex...
9. Litterbug Busters/There Might Be Giants
Aired: Nov 7, 2007It appears a litterbug is dumping garbage on Mulberry Road. Huckle decides to...
10. Where's Junior?/The Secret Club Mystery
Aired: Nov 7, 2007When no one can find where Junior Monkey went, Huckle, Lowly, and Sally are s...
11. The Playground Mystery/The Crazy Clock Mix-Up Mystery
Aired: Nov 8, 2007When home plate mysteriously disappears, followed by a bunch of other playgro...
12. The Cheese Car Chomp Mystery/Where's the Hero?
Aired: Nov 8, 2007When the mouse family discover someone, or something, has taken a big bite ou...
13. The Mystery of the Unbreakable Bed/The Twisty Line Mystery
Aired: Nov 9, 2007For some strange unknown reason, every loaf of bread in Busytown is hard as c...
14. Chain of Mysteries/The Mystery of the Unfinished Painting
Aired: Nov 9, 2007Someone put locks and chains on the teeter-totter, the lift bridge, and the s...
15. The Pretty Park Mystery/The Missing Museum Statue Mystery
Aired: Nov 10, 2007Topiary shrubs resembling Busytown citizens, mysteriously appear in the park....
16. The Vanishing Tiara Mystery/The Postage Stamp Mystery
Aired: Nov 10, 2007When Belinda Bear, a circus trapeze artist, loses her good luck tiara, it's u...
17. The Bank Note Mystery/The Flying Saucer Mystery
Aired: Nov 11, 2007When Huckle and his pals find a mysterious note at the Busytown Bank, Pig Wil...
18. The Smudged Letter Mystery/The Mystery Present
Aired: Nov 11, 2007Huckle and his friends find a present with wrapping paper showing a baby them...
19. The Falling Fruit Mystery/The Dragon Hunters
Aired: Nov 12, 2007One of the cherry trees in Patrick Pig's orchard has mysteriously dropped all...
20. The Disappearing Swimming Hole/The Forgotten Fire Hose Mystery
Aired: Nov 12, 2007When all the water in the gang's swimming hole suddenly disappears overnight,...
21. The Disappearing Home Mystery/The Flipping, Flying, Slipping, Sliding Mystery
Aired: Nov 13, 2007When the Raccoon family return home to find their entire house empty, Huckle,...
22. The Mystery of the Unpopular Pizzeria/The Silly Scarecrow Mystery
Aired: Nov 13, 2007Everyone's favorite pizzeria is closing due to a sudden lack of business. Huc...
23. Huckle, Where's My Apple Car?/The Dirty Laundry Mystery
Aired: Nov 14, 2007Parking his famous apple car beside Granny Good-Pig's Applesauce stand, Lowly...
24. The Eight Shoes Mystery/The Something in the Woods Mystery
Aired: Nov 14, 2007When Shoemaker Sam come across a bag containing eight shoes to be repaired an...
25. The Borrowed Book Mystery/The Mystery of the Missing Mystery Books
Aired: Nov 15, 2007When Sally needs a specific book for a school report on trees, she finds that...
26. The Mystery of the High Jumper/The Mystery of the Summer Snowman
Aired: Nov 15, 2007Someone who can jump as high as a house is putting advertising stickers on ev...
Aired: Nov 16, 2007Someone takes drastic measures to stop the noisy squeaks in Busytown.
28. The Mystery of the Unfinished Painting
Aired: Nov 16, 2007Huckle and his friends return an unfinished portrait to the artist who lost it.
Aired: Nov 18, 2007Huckle and his friends return an unfinished portrait to the artist who lost it.
30. The Missing Museum Statue Mystery
Aired: Nov 18, 2007A statue made of butter disappears from the Busytown Museum.
31. The Vanishing Tiara Mystery
Aired: Nov 19, 2007A trapeze artist's tiara disappears.
Aired: Nov 19, 2007Huckle and his pals help Mr. Frumble find his prized postage stamp.
Aired: Nov 20, 2007Lowly and Sally team up to decipher a mysterious bank note's meaning.
Aired: Nov 20, 2007Huckle and his friends find a tiny flying saucer.
35. The Smudged Letter Mystery
Aired: Nov 21, 2007Huckle, Lowly and Sally help Postman Pig deliver a letter with a smudged addr...
Aired: Nov 21, 2007The gang finds a wrapped gift without a name tag.
Aired: Nov 22, 2007A cherry tree mysteriously drops all of its fruit.
Aired: Nov 22, 2007Huckle and his pals search for a dragon on the loose.
39. The Disappearing Swimming Hole
Aired: Nov 23, 2007When they find their favorite swimming hole empty, Huckle, Lowly and Sally se...
40. The Forgotten Fire Hose Mystery
Aired: Nov 23, 2007The gang helps the Busytown firefighters find their missing hose.
41. The Disappearing Home Mystery
Aired: Nov 24, 2007Everything in the Raccoon family's house disappears.
42. The Flipping, Flying, Slipping, Sliding Mystery
Aired: Nov 24, 2007Huckle and his pals try to figure out why things made of metal are flying aro...
43. The Mystery of the Unpopular Pizzeria
Aired: Nov 26, 2001When a popular pizzeria closes, the reason for it is a mystery.
44. The Silly Scarecrow Mystery
Aired: Nov 26, 2007Pig Will and Pig Won't believe that a scarecrow is after them.
45. Huckle, Where's My Apple Car?
Aired: Nov 27, 2007Lowly's pals help him find his missing apple car
Aired: Nov 27, 2007Huckle, Lowly and Sally try to uncover why strange stains are appearing.
Aired: Nov 28, 2007Huckle, Sally and Lowly race to figure out who owns eight shoes.
48. The Something in the Woods Mystery
Aired: Nov 28, 2007A mysterious creature is in the woods.
Aired: Nov 29, 2007Sally, Huckle and Lowly investigate a mysterious smudged signature in a libra...
50. The Mystery of the Missing Mystery Books
Aired: Nov 29, 2007A shipment of books goes missing.
51. The Mystery of the High Jumper
Aired: Nov 30, 2007Someone who can jump high puts advertising stickers everywhere.
52. The Mystery of the Summer Snowman
Aired: Nov 30, 2007A snowman appears on a summer day.
