Maudie has been looking forward to a pop concert. All seems lost when her tickets are too. Can she find out where they went or did she just simply misplace them?
The local animal shelter visits the school to audition kids for a public-service commercial and Maudie suspects that there is a crime going on right in plain sight.
Ezra's Nanna is visiting and keeps interrupting his detective work which upsets him. She unexpectedly gives the Inbestigators a case to crack, which does give something for Ezra to be thankful for.
At the school's Science and Technology dress-up day, Patrick's robot costume is stolen by a mad professor. Maudie and the team must hunt down this costume thief.
When a birthday party that Ava throws for a lovesick teacher has an ice cream birthday cake vanish during the party, the InVESTigators come to catch the thief cold.
Charlie knows a player at the Mini Golf Park he works at is cheating in order to win a big prize but can't figure out how. That's where the InBESTigators step in to help him prove the cheater is a fake and thus save his job.
Toby sends birthday invitation to five of his friends. Someone copies it and secretively distributes it to the entire class. It's up to The InBESTigators to catch this copy culprit.
When the 'Treat Day' lunch orders are replaced with healthy foods Ezra goes off the handle and demands that he and the rest of the InBESTigators track down the reason for the substitute.
When a new intern solves a case of a stolen bike before Maudie, the others, Ezra, Ava and Kyle promote him to a full InBESTigator. Maudie has her suspicions about this new member of the team.
Customers of a local ice-cream shop can't lock their cars because the electronic key locks don't work so they don't stop and visit. The InBESTigators dig in as to the reason why this happens only in that area.
Kyle has accidentally signed up for the school's 'Trimathlon' and is actually doing rather well, that is until his cheat sheet goes missing. Can the rest of the InBEATigators find out who took it before the contest is over?
The school's lollipop man Gary stands accused of breaking into parents cars and stealing bags from them. Kyle enlists the InBESTigators to find the real thief who's making a sucker of Gary and help him lick the accusations.
When Ezra is nominated for the Young Small Business Awards he seems far from excited and more like very upset as the time for the event grows near. Maudie enlists the rest of the InBESTigators to find the reason why.
At a school fundraiser, a lemonade stand is doing very well until it is sabotaged. Amelia's accused of this sour deed because her cupcake stand is doing poorly. In steps the InBESTigators to aide in finding real villain.
At the Coins for a Cure fundraiser, Ramona appears to be able to make fortune telling predictions that come true. This puts Ezra and Ava's friendship on the line. Maudie steps in to make things crystal clear.
Mr McGillick's cell phone seems to be missing at the Grade Five camp, Kyle stands accused of taking it as one of his pranks. It's up to the InBESTigators to look up the real thief.
