A series of bizarre events in their home town lead the Hardy Boys on a trail of robbers and kidnappers.

Frank and Joe manage to escape from a hostage situation with a band of smugglers, and, of course, solve another mystery.

"Frank and Joe are off to the Florida Keys to work alongside Lookout Shark Lab's Dr. E. Ella Edwards, one of the world's foremost marine biologists. On their first evening, Dr. Edwards paddleboards out to check on a lemon shark nursery. But after a sudden squall rolls in, she doesn't return, and the next day her board washes up with a shark bite taken out of it. The Hardys volunteer to help the search and rescue efforts as panic sparks a rift in Lookout...

Joe and Frank Hardy win a contest to be handlers for a Green Crawler balloon in the annual fall festival, but when the balloon is sabotaged the day before the parade, the brothers must investigate.

Frank and Joe try to stop the illegal international CD-burning operation that employs teenagers.

" The Hardy Boys are visiting Paris! Joe is excited to check out all the street art he's heard about. And Frank can't wait to go to all the museums he's researched. On their very first day in the city, the brothers are woken up early in the morning by fireworks. But these are no ordinary fireworks. They are a part of elaborate cover for the heist of a priceless artifact. What's worse, the theft seems to have been orchestrated by Joe's favorite street...

Frank and Joe Hardy investigate rumors of a hairy beast running through the woods of Bayport and attacking people. A close encounter with not one but three creatures makes the boys wonder if the beast is real and if it's multiplying.

Teenaged detectives Joe and Frank Hardy uncover a plot to sabotage a ski resort.

Frank and Joe investigate the destruction of science fair projects.

After Frank and Joe's friend Jason wins a map to the buried treasure of Captain Scurvydog, they investigate when Jason claims the ghost of the pirate has been haunting him and warning him not to dig up the treasure.