Calendar mysteries

Bradley, Brian, Nate, and Lucy follow clues on an Easter treasure hunt, while trying to figure out who set it up for them.

As a Father's Day gift to the twins' Dad, Bradley, Brian, and their cousins Lucy and Nate try to identify and stop whatever creature is biting fruits and vegetables in the garden.

When three leprechaun statues disappear just before St. Patrick's Day, Bradley, Brian, Nate, Lucy, and other friends follow clues in order to prove that Lucky O'Leary is innocent of the crime.

After finding an unusual present--a lost puppy--on Christmas Eve, best friends Bradley, Brian, Nate, and Lucy scramble to find its owner before morning.

Someone has been stealing and leaving behind little green sneakers, so Bradley, Brian, Nate, and Lucy trail their new teacher, who wears the same shoes in normal size.

After finding an unusual present-- a lost puppy-- on Christmas Eve, best friends Bradley, Brian, Nate, and Lucy scramble to find its owner before morning.

As Thanksgiving approaches, Nate and Lucy must help Bradley and Brian find out what their shady new neighbors are hiding in their backyard.

While investigating a mystery on New Year's Eve, four friends encounter a big surprise.

After finding an unusual present--a lost puppy--on Christmas Eve, best friends Bradley, Brian, Nate, and Lucy scramble to find its owner before morning.