Search

The twins investigate the disappearance of Maysie, a baby elephant, from a circus.

The twins investigate when Princess Glorianna is kidnapped.

The twins investigate the appearance of a ghost in a haunted house on Halloween.

When someone tries to sabotage the basketball's team's chances of winning the playoffs, Mary-Kate and Ashely work together to find the culprit.

The twins investigate when the prizes for a scavenger hunt on a cruise ship are stolen.

The twins investigate burglaries for a Native American family at a ranch in Montana.

Twins Ashley and Mary-Kate suspect foul play when their basset hound, Clue, disappears from their cabin at Camp Barkaway, a recreational and educational camp for dogs and their owners.

Adolescent twin sleuths Mary-Kate and Ashley Olsen investigate the alleged haunting of an old plane in the Museum of Early Air Travel in Washington, D.

Mary-Kate and Ashley suspect that the strange noises and smells they are encountering at the Logical I dude ranch are being caused by a dragon--so they proceed to investigate.

Twins Mary-Kate and Ashley investigate when a diamond pin belonging to their friend's mother disappears in a mall.

Twins Mary-Kate and Ashley investigate when a screaming scarecrow disrupts their Halloween party.

Twins Mary-Kate and Ashley investigate when Jessie's science fair project, a robot, is stolen.

Mary-Kate and Ashley try to help Mrs. Busybody find out who, or what, is haunting the empty house across the street.

The twins investigate why a space shuttle was covered with hundreds of holes.

Twins with psychic abilities get to know each other again after years of separation.