Lunch Lady and Betty have been fired but the Breakfast Bunch convinces them to return and stop the school's new superindendent and her minions from carrying out an evil plan for revenge.

Frank and Joe go undercover at a major skateboarding contest in Venice, California, to try to find out who is killing off the competition.

Frank and Joe Hardy investigate the disappearance of several teens at a "tough love" western camp.

Frank and Joe take a fun trip across country on a new bullet train and end up in the middle of a nightmare where they are blamed for everything, including attempted murder.

Nancy sets off to find a long-lost engine that gets 200 miles to the gallon. The problem arises when they encounter a ghost that guards the machine.

A billionaire environmentalist has constructed bio-domes in River Heights to help save the planet, but, shortly after a gross green substance destroys one of the domes, creatures such as Sasquatch, Okala Kane, and the Abominable Snowman are seen lurking nearby. Nancy, Bess, and George investigate.

A top-secret computer chip has been stolen from Rackham Industries and a mysterious charm bracelet is mailed to Nancy. And each charm represents a different crime. Can Nancy, with help from Bess and George, deal with River Heights' latest crime spree and her romantic crisis at the same time?

"Puppy PI Rider Woofson thought he was the only detective at Pawston Elementary, but while bringing down a pencil theft ring, he finds out that there are other super sleuths at school. Fortunately (or not!) there's plenty of pet-ty crime happening at Pawston, so Rider joins forces with the other puppy PIs to form the PI Pack--the best (and only!) detective group at school. Their first case is high stakes because it hits every student in the belly...a...