When a giant circle appears in the middle of a corn field, Pig Will and Pig Won't are convinced it's an alien landing site.When flying potatoes are dropping from the sky in Busytown, Huckle and gang are determined to find out why.
The kids find some numbered papers blowing around the park. Huckle and the gang are determined to find out where they came from.When all the milk in Huckle's Dad's store turns out to be sour, Huckle, Sally and Lowly set out to find out why.
A nameplate about to be put on a statue of Admiral Hornblast goes missing and Huckle, Sally and Lowly try to uncover what happened to it.Pig Will and Pig Won't are playing spies. However Pig Won't suddenly finds himself out of the game when his Secret Spy Ring disappears!
When coupons for free cookies fail to arrive in the mail, Huckle and the gang are determined to find out why.A model boat is mysteriously broken and Huckle, Lowly and Sally set out to discover how it happened.
The kids' awesome sandcastle gets trampled overnight; Huckle and gang are determined to find out how it happened.Huckle, Sally and Lowly discover the impossible - a set of ski tracks that run on either side of a tall tree.
Huckle and gang are determined to find out why Sally's yellow t-shirt mysteriously turns greenThe kids discover pieces of a large metal hand, Huckle and gang are determined to find out to whom they belong..
When newspapers, then cardboard boxes, then plastic pails disappear from porches and sidewalks, Huckle, Sally and Lowly set out to figure out what the connection is.Huckle, Lowly and Sally happen upon a huge tooth and can't imagine anyone in all of Busytown big enough to own it.
A series of strange incidents and a whoop whoop whoop sound has Pig Will and Pig Won't convinced a hungry bat is loose in Busytown!The mysterious disappearance of Mayor Fox leaves Huckle and the gang on an important search.
Huckle, Lowly and Sally set out to discover why all their mini putt balls are disappearing.When the gold coins Mr Fix It finds on the beach disappear, Huckle, Lowly and Sally set out to find out where they went.
Someone is painting red spots on all sorts of things in Busytown! Huckle and the gang set out to find the culprit!A teeny weeny piano motivates Huckle, Sally and Lowly to try to figure out who would own such a small instrument.