Olive and Otto must figure out how and why things are disappearing around town when all Otto wants to do is listen to a song by his favorite band, Soundcheck. Debbie from Debbie's Pizzeria has doubled... not once, but twice... creating four Debbies! When one of the Debbies go missing, Olive and Otto need to find her.

When symmetrical objects become vandalized, Olive and Otto must figure out why. Olive and Otto are called in to help when objects and, eventually, people start disappearing inside an Italian restaurant.

When a blob gets loose in Odd Squad headquarters, Olive and Otto compete against rival agents to catch it first. When people in town can no longer count down, Olive and Otto must uncover who is causing the problem and why.

In this Christmas-themed episode, Olive and Otto help Santa track down his reindeer when they are accidentally shrunk. Also, Oscar helps Ms. O get off Santa's naughty list by making sure the number of nice things she has done is greater than the number of naughty.

When several of Oscar’s Oscarbots (robots made in his own image) become lost in town, Olive and Otto must help him find them. Otto and Olive must figure out why people in town are becoming plaid and striped.

When Mayor Macklemore catches a case of the Sing-A-Longs, Olive and Otto must discover the cause before the Mayor sings his way out of his job. When a Ms. O from the past shows up at the office, Otto and Oscar must send her back to the day she came from or risk causing a time catastrophe.

Olive and Otto are sent to Shapely Manor to investigate an odd crime with even odder people.

When Olive catches a case of The Skips and goes missing, rookie agent Otto must solve his first case by himself. Otto rushes to finish a case so he can see his favorite magician, The Great Grinaldi, perform.

When Otto accidentally releases 100 small furry creatures in headquarters, he recruits Oscar to help get them back before Ms. O finds out. In a flashback episode, Ms. O tells the story of how she defeated a villain called the Patternista back when she was an agent.

When characters escape their books in the library, Olive and Otto must figure out how and why it’s happening and put a stop to it. When Ms. O’s important briefcase is stolen by a shape shifter, Olive and Otto must get it back.

Olive and Otto battle Oren and Olaf for the best chairs at Odd Squad while Ms. O and Oscar run a top secret mission. Olive and Otto become concerned when they find out their Odd Squad test is being administered by Agent Obfusco - a mysterious agent who speaks only in word problems.

When a miffed O’Brian won’t let Olive access the tubes, she has to solve the mystery of what she did to upset him. Olive tells Otto the story of what happened to Octavia's partner, Agent Oz.

Ms. O and her team will stop at nothing to win their very first Jackie Award. When Ms. O and Oscar accidentally switch bodies, Olive and Otto must set things right before the entire Odd Squad team finds out what happened.

When Ms. O has bizarre side effects after being sprayed by a weird plant, Olive and Otto must travel around town finding the correct measurements of the ingredients for the medicine to cure her, all while keeping Ms. O's condition a secret from her. The only thing that can bring Ms. O’s old partner O’Donahue out of retirement is the very thing that put him there in the first place: a mysterious villain and a case that’s gone unsolved for years.

Dr. O takes the lead on the case of a strange medical crisis that causes chaos right in the middle of Odd Squad HQ. Olive and Otto help Ms. O host a lunch for some very important but easily offended guests.

In order to save humanity, Olive and Otto must locate a treasure chest that Oscar buried. The agents throw a surprise party for Ms. O.

When the alarm system at Headquarters is triggered, Olive, Otto, Ms. O, and Oscar must avoid a series of booby traps in order to shut it off. Olive and Otto explain to Ms. O how a case went wrong, each in their own way.

When a young agent in training gets lost in headquarters, Olive and Otto must find him before Ms. O finds out. Olive and Otto must stop Fladam, a villain with a vendetta against cubes.

Olive and Otto have to crack a case in which a group of people have been turned into puppets. With the help of Odd Squad, Delivery Debbie and Delivery Doug must figure out why their food is disappearing.

In this half-hour episode, dinosaurs break out of the dinosaur room in headquarters and Olive and Otto must travel back in time to save the day.

When Otto starts shrinking, Olaf leads Olive and Oren on a quest for the only known cure - the magical Growing Potato. Ms. O tells Olive and Otto the story of how she first joined up with Odd Squad.

When the members of Soundcheck go missing, Otto and Olive must bring them back together in time for their big concert. When all of Odd Squad comes down with a case of the jinx, it’s up to Oscar and Dr. O to save the day.

In this half-hour episode, Olive tells the story of what happened to her old partner.

A villain uses one of Oscar’s gadgets to cause destruction around town, which eventually leads to Olive getting kicked off the squad. Olive and Otto are called in to help when Polly Graph mysteriously quits her lemonade stand.

Olive and Otto must find a way to stop Obfusco’s plant from taking over headquarters. When Otto gets trapped inside a video game it's up to Olive to rescue him.