Tom Swift and his friends at the Swift Institute work together to retrieve a drone that was taken by the custodian, Mr. Conway, who they believe is a notorious hacker.

"Something seems amiss when an overnight lock-in at Swift Enterprises turns into a quarantine lock-down, and Tom and his friends must find the real reason behind it all"--

"It's another day at the Swift Academy when Tom starts finding little troll-like figures around campus. And he's not the only one. Much to the amusement and curiosity of students, these dolls are appearing all over the school. But even after they're collected by faculty, a second wave mysteriously appears--except these replacements record audio and play it back for surrounding listeners. Before everyone knows it, secrets and gossip are revealed across...

Tom and his friends track down a mysterious blogger who pushes pranks too far.