While visiting his uncle in a Costa Rican rain forest, Steve meets a monkey which he wants to tame and a smuggler who forces him to some very responsible decisions.
When fifteen-year-old Jesse manages to smuggle onboard the Academy a mysterious red Pearl, a fragment of space debris that is a dying Earth's most important energy source, he sets forth a destructive chain of events.
When Frank discovers his computer-whiz pal unconscious from a poison, the Hardys suspect he stumbled onto a smuggling ring. They have one week to break the program code and find the antidote to the poison.
Lieutenant Commander Michael Alexander Donovan and SEAL Team Two are on a dangerous mission to capture a known terrorist and gun smuggler near the Iraq-Syria border but they could have been deceived by the local police chief.
In eighteenth-century England, after his father buys a schooner called the Dragon, sixteen-year-old John sets out to sail it from Kent to London and becomes involved in a dangerous smuggling scheme.
Frank and Joe Hardy become involved in a large and dangerous conspiracy while trying to keep the valuable invention created by one of their father's clients from falling into the hands of thieves.