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Amanda Wainwright is a single mom who works as a US Postal Inspector while son Preston is a forensics lab intern. Amanda's partner is Mitch who helps deliver a message after each case is solved.
When Cynthia Ren's crime syndicate returns, it's up to Amanda and Mitch to figure out how to stop the fraud; the woman responsible for Preston's father's death is getting out of prison.
Amanda and Mitch investigate a double-billing scheme where patients' insurance is billed for unnecessary treatments and the bills pile up; Amanda and Mitch find that Preston is closer to the crime than they thought.
When a grocery store is robbed, losing hundreds of money orders in the process, Amanda and Mitch investigate; Noah puts on his own play for school.
Scam schools teach young college students how to commit scams; Amanda and Mitch are on the case, with more help from Noah than they could have imagined.
Amanda and Mitch investigate a robbery at a local post office; Preston and Veronica help Noah compete in his favorite live action role-playing game, "Shields and Potions."
A university discovers that a student is using a false identity; the gang must figure out who the student really is.
The Inspectors are on to a holiday scam using fake charity to steal donations; the gang dog-sits a puppy whose owner mistreats her.
After a string of mailbox explosions, Amanda and Mitch are on the case to find the person responsible; the gang helps Noah overcome new pressures when his life starts to change rapidly.
A shipment of makeup contains a chemical harmful to the skin; the gang finds themselves tied up when they help Noah house sit for his aunt.
Turtles are being smuggled through the mail; the inspectors must save the turtles and catch the culprit; the gang takes a trip to the beach, but Preston gets himself into trouble when he becomes jealous of Veronica's new boyfriend.
Scammers take advantage of people after a hurricane; Veronica starts to date a trivia host and enlists Preston to help her with her relationship.
A young student is bullied at a local middle school; the inspectors find that there is more to it than hurtful words; Veronica realizes her new boyfriend isn't who he seems to be.
The inspectors investigate a diamond heist at an airport; Preston and Noah help Veronica get back on her feet after a bad breakup.
Amanda and Mitch go under cover at a local diner to catch the crime family responsible for a diamond heist; Noah enlists Preston and Veronica to help him with an "escape room" opportunity, but they soon realize it is more than just a game.
When a toxic sticker ends up in the hands of a young girl, the inspectors have to find out who is responsible; Preston is excited to work on a political campaign, but has his work cut out for him when he is put in charge of the politician's son.
A college crook decides to seek help from the Inspectors after he gives up on his plans to deliver an acidic spray-rigged package to their desired target; Preston makes a profile on an online dating site and worries about his profile picture.
Actor Erica-Marie Sanchez offers unique details about an episode where Preston recovered as the Inspectors investigated and insurance fraud scam.
Erica-Marie Sanchez looks back at an episode where Mitch and Amanda uncovered a school that teaches people different types of scams.
A restaurant falls victim to a scam; the scam leads back to a big-time cook; Preston wins a good citizen award at Jamestown University.
A former soccer star puts together a fake charity that "funds" a children's soccer team; Preston and Veronica are suspicious of Noah's recent absence.
