In a search for the missing Willard Grafton, Frank Hardy and younger brother Joe, encounter a gang of criminals intent on defrauding the US government, and are lead across California and even into Mexico.

"It's lights, camera, disaster for a film crew unless Frank and Joe can track down a saboteur in this cinematic Hardy Boys adventure--a fresh approach to a classic series. Joe and Frank Hardy are excited to be cast as extras in the zombie movie that's filming in their hometown. Not only is film production way more exciting than what usually goes on in Bayport, it also doesn't hurt that the lead actress is pretty cute. At first it seems like for once...

Bayport High's Green Environment Conservation Club is camping on Black Bear Mountain, but the bears aren't the only danger--rumor has it that a madman with a taste for human flesh lurks in the nearby forest. When the campers awake one morning to find a bear roaming the campsite, they also find that their teacher is missing ... and blood is streaked across his tent. Frank and Joe go in search of him, but can they survive the dangers on the mountain?...

Called in to investigate the theft of some statuettes stolen from the Eygptian Museum in New York, the Hardy brothers become involved in a deepening mystery which includes the possible overthrow of another country's government.

Brother detectives Frank and Joe return to dangerous Black Bear Mountain to help locate a scientist gone missing from a remote research station.

The Hardy brothers travel to an Arizona ranch and eventually, Thailand in pursuit of jewel thieves who have stolen a priceless ruby.

The Hardy Boys find themselves on their own in France, fighting the largest organized crime ring in the world.

Their search for an Easter Island idol takes the Hardy boys to Easter Island and on to investigate the theft of government material in Antarctica.