The Inspectors investigate a company that helps inventors patent and market their ideas, promising to help people make millions. Also, Amanda announces that she’s planning on breaking up with Preston’s professor. With an upcoming presentation, Preston worries that his professor’s failed relationship with his mother might result in a failing grade for him.

When a no-nonsense science teacher is bitten by a poisonous snake that was sent to her through the mail, the inspectors try to track down the prankster; Veronica feels Preston is getting a little too friendly with the new girl at school.

When a hospital's record system is hacked and held for ransom, the inspectors step in to help with a new tech-savvy member of the team; Veronica auditions as a weather reporter for a local news station.

The inspectors call in a tech services expert who can potentially help them trace the individuals who attacked a letter carrier; Veronica teaches a university class and notices one of her students being negatively influenced.

A prankster who is knocking over mailboxes encounters an exploding mailbox; when Preston joins a new gym on his road to recovery, he encounters bullying.

A designer purse is found to be a fake; Mitch's niece is suspected of stealing from the Wainwrights.

When someone gets scammed into buying fake, prepackaged funeral plans for veterans, the team lures the perpetrator to a veterans' charity ball; Noah's grandfather visits.

A group of thieves steals Christmas gifts from doorsteps; Preston, Noah and Veronica volunteer at the "Letters to Santa" program and find a mysterious letter from 1962; they vow to track down the sender and deliver a Christmas surprise.

The Inspectors hunt for somebody targeting teen girls online; Mitch worries that his niece might be targeted next and races to stop her from meeting with her online friend.

Amanda and Georgia investigate a series of post office collection box break-ins; Preston, Veronica, and Noah must find a band to play at the Henry Wainwright Foundation's inaugural event.

A teddy bear filled with illegal contraband is stopped at the post office; Amanda and visiting inspector Eric Lin decide to catch the criminal in the act; a school-wide meme competition is consuming Preston and Noah.

The conductor of an opera receives a threatening letter; Preston and Veronica struggle to decide what to get each other for Valentine's Day, causing them to question their relationship.

Mitch and Amanda must find a scammer before he leaves Jamaica; Veronica pits Preston and Noah against each other over who can collect the most canned food donations before the big game.

An over-the-hill actress and a shifty for-profit college administrator team up to dwindle students who are looking for a career in the arts, and Noah is one of those students. With his ambitions still set on filmmaking, Noah is set on dropping out of Jamestown and enrolling into this "school". The inspectors and Preston step in to save their friend.

Preston is house sitting for his uncle in NYC and his investigative mind starts to wander when he notices some suspicious activity in the office building across the street. Meanwhile, Amanda works on a high-profile check-washing scam in the Big Apple.

When Veronica's grandmother becomes a victim of a foreign lottery scam, the inspectors step in to help, but Veronica worries that her family may be facing another challenge when her grandmother continues to believe that big winnings are on the way.

The inspectors investigate a synthetic opioid case when one of their own accidentally comes into contact with a dangerous substance. Meanwhile, Veronica is worried about an upcoming chemistry exam, and her study partner offers her a boost that he thinks could help.

A journalist at a newspaper receives a ransom letter in the mail stating that the editor has been kidnapped. Meanwhile, Veronica clashes with her JU news producer about the type of stories they should report.

A witness to a bank robbery receives threatening letters in the mail, and the inspectors investigate to find the culprit. Meanwhile, Veronica and Noah are contestants on a college game show to determine who knows Preston better.

A look back at an unusual case that the Inspectors investigated involving counterfeit goods.

A look back at a case involving counterfeit goods.

A criminal is set free after finding new evidence; Preston must determine whether a student is eligible for suspension.

The Inspectors go to the coast to help with hurricane recovery; Preston, Noah and Veronica volunteer in an emergency shelter; Preston is pushed to his limit when he ventures off alone to find a missing girl.

Preston locates the missing girl but must weather the storm until help arrives; Noah and Veronica help the Inspectors with their rescue mission.

A look back at a case involving hazardous materials sent through the mail.