The Turtles make a weird discovery after they encounter two Hidden City villains on the hunt for a dog-like agent.
Leo convinces the team to track down paper thieves stalking the city. Donnie creates new gear to help his brothers overcome their bad habits.
The Turtles help April throw a not-so-happy birthday party. A news anchor-turned-mutant gets in the way as the Turtles track down Hypno-Potamus.
Mikey and Donnie agree to take on a job after their moon buggy gets repossessed. The Turtles must endure Splinter's terrible Rat Flu.
Donnie's newly built Turtle Tank goes missing. In order to get a birthday gift for Splinter, the Turtles take on a team of Times Square mascots.
Leo accidentally beats Raph's favorite world champion wrestler. The Turtles take on a dangerous minotaur in a pizza-shaped maze.
The Turtles search for a way to eliminate New York City's Oozesquito problem before more mutants are created.
The Turtles struggle to stop a burglary during their skateboard idol's competition. Hypno-Potamus returns to wreak havoc at April's homecoming dance.
Leo, Mikey and April investigate a mysterious specter haunting a supermarket. April and the brothers help Raph conquer his fear of a cute TV show bunny.
After a major glue accident, the Turtles must fight their greatest villains. An animatronic army interrupts the Turtles' first music gig.
An evil tech club lures Donnie with the promise of a gorgeous purple jacket. A trio of mutated musicians attacks the Turtles' favorite pizza spots.
Donnie's new artificial intelligence invention takes over the lair. Mikey goes on a solo mission to retrieve a classic Lou Jitsu video game.
The Turtles face a new threat as Baron Draxum gathers some of their toughest mutant enemies in a plot to destroy them.
A simple task of returning a DVD gets complicated by the endless chaos of New York City. Things go sour when the Turtles help a down-and-out mutant.
Donnie gets more than he bargained for after he enhances his brothers' intelligence. Mikey and Meat Sweats become BFFs after a bizarre transformation.
As the Turtles work to lure out Baron Draxum, Splinter investigates a string of mysterious events at April's new job.
After losing his brothers in a portal, Leo ventures to the mystic Hidden City to save them. Baron Draxum fights Warren Stone for a powerful gauntlet.
Leo and Donnie help April enjoy a quiet day with a new friend. Raph forms a secret bond with a new sparring partner.
Leo and Mikey get sidetracked by brotherly games while helping out at Run of the Mill Pizza. Baron Draxum struggles to move up the Foot Clan ladder.
The Turtles dive through the depths of a hidden library to rescue Mayhem. Donnie obsesses over a competitive new video game.
A lazy river sewer ride turns savage after Raph gets separated and left alone. The Turtles' recent failures pit all of New York City against them.
In search of former glory, Splinter ropes Donnie and Mikey into a mutant demolition derby. Splinter trains the Turtles in the art of stealth.
The Turtles search for a piece of the Dark Armor in Repo Mantis' scrapyard. A ferocious mutant threatens April and the team's snow day.
April and Sunita look for a stolen cloaking brooch. The Turtles meet their favorite sci-fi movie star, Jupiter Jim.
Baron Draxum and the Foot Clan transport the nearly complete Kuroi Yoroi armor to a ritual site. Splinter prepares the Turtles for the upcoming fight.
Unwilling to surrender the final piece of Kuroi Yoroi armor, Splinter devises a secret plan to rescue the Turtles from Baron.