Season 4
Episode Guide
Cousin Sid
S4
E1
Cousin Sid: Casey and April bring the Turtles and Splinter to Casey's farmhouse to heal up from the beating they took in the final fight with the Shredder. But before they can start to recover, Casey's cousin Sid crashes the scene...
The People's Choice
S4
E2
The People's Choice: Out camping for the night, the four turtles find themselves in the middle of an election. It's not any ordinary election. The two female candidates are from a distant planet where the political process is trial by combat.
Sons of the Silent Age
S4
E3
Sons of the Silent Age: Taking a Huck Finn styled trip down a local river, the turtles, Casey and April discover a nuclear power plant ... as well as mermen of Y'Lantias ... the last of their kind.
Dragon's Brew
S4
E4
Dragon's Brew: Hun's taking the Purple Dragons to new heights. He hijacks a top secret government shipment...one of Bishop's little surprises.
I, Monster
S4
E5
I, Monster: On a training exercise in an abandoned brick works in the boroughs, Casey Jones and our four turtles run afoul of a strange "man." This is the Rat King. and even though they don't know it, the turtles have met him before.
Grudge Match
S4
E6
Grudge Match: Mikey's blowing off trainings more than ever; he's the BattleNexus Champion, after all! Who needs training?
Wing and a Prayer
S4
E7
Wing and a Prayer: It's a bird! It's a plane! Okay, it's this guy with angel wings, an Avian, named Raptarr who is after this other guy with metal wings, named Mephos, who wants to take over the Avians' flying city.
Bad Day
S4
E8
Bad Day: Everything goes from bad to worse for the turtles. Life spins out of control in a nightmare of horror and pain. Who is behind all this? How will it ever end? P.S. Your cat is ...
Aliens Among Us
S4
E9
Aliens Among Us: It looks as if Agent Bishop might find himself out of a job or at least out of funding. With the President in New York City, the turtles are out watching the motorcade when they find themselves right in the middle a new alien invasion!
Dragons Rising
S4
E10
Dragons Rising: Hun wasn't kidding.The Purple Dragons really are going places.They're fast becoming a world class crime organization. But, Casey's still got a score to settle with Hun ... big crime syndicate or no.
Still Nobody
S4
E11
Still Nobody: A gang of young toughs, filling the void left by the rising Purple Dragons, is out to bash an old man to keep him from testifying against them.
All Hallows Thieves
S4
E12
All Hallows Thieves: It's Halloween and all the freaks are out ... especially the King of Thieves. He manages to bring to life an old idol, which wreaks havoc upon the town with its legions of gremlins.
Samurai Tourist
S4
E13
Samurai Tourist: Usagi and Gen come to New York for a visit with the turtles. Gen gets a little carried away by the bright lights and the big city and goes wandering off on his own. Bishop hears of another possible "alien" presence.
The Ancient One
S4
E14
The Ancient One: It is time for Leonardo to move on. Splinter sends Leo to a new sensei ... or rather, a very old sensei. The journey is long and perilous. Can Leonardo look into himself and find the right answers to his questions?
Scion of the Shredder
S4
E15
Scion of the Shredder: Hades hath no wrath like a scion scorned. Karai strikes with a vengeance. She physically invades the ultimate sanctuary! The lair! She crushes the turtles' home and nearly crushes the turtles scattering them across town.
Prodigal Son
S4
E16
Prodigal Son: Leonardo returns from his lessons with the Master Sage to find the lair destroyed and his family scattered across town ... all by the hand of Karai.
Outbreak
S4
E17
Outbreak: Something is growing and spreading in the sewers and the waterways.The remnants of Bishop's 'aliens' have infected various animals, mutating them into horrible beasts ravenous for anything that gets in their way... including turtles.
The Trouble With Augie
S4
E18
The Trouble With Augie: April receives a message from her long, lost Uncle Augie ... who's trapped in another dimension.
Insane in the Membrane
S4
E19
Insane in the Membrane: Stockman has finally reclaimed his humanity by cloning a body for himself. Now, he is human once more ... until his body starts to deteriorate and the changes undermine his sanity.
The Return of Savanti Romero: Part 1
S4
E20
The Return of Savanti Romero: Part 1: Evil demon sorcerer Savanti Romero is back! Back in time, that is - he's stuck in the Jurassic period, but is causing trouble for the Turtles in the present day.
The Return of Savanti Romero: Part 2
S4
E21
The Return of Savanti Romero: Part 2: Evil demon sorcerer Savanti Romero has lured the Turtles back to the Jurassic period to exact his revenge, as well as get his hands on the Time Sceptre.
Tale of Master Yoshi
S4
E22
Tale of Master Yoshi: Resting and recuperating in a new lair where there's no electricity and hence no TV and no electronic entertainment, the Turtles resort to the ancient cure for boredom: storytelling.
Adventures in Turtle-Sitting
S4
E23
Adventures in Turtle-Sitting: Casey and April prepare for a romantic evening out on the town, but their would-be date is dashed when the Turtles drop in with a very ill Donatello.
Good Genes Part I
S4
E24
Good Genes Part I: Donatello is sick ... mutated into a huge monster actually. Our heroes only hope is to sneak into Bishop's laboratory and acquire some sort of cure for Donatello.
Good Genes Part II
S4
E25
Good Genes Part II: The turtles have made a deal with the devil ... a.k.a. Agent Bishop. In return for curing Donatello, his three brothers have agreed to retrieve a pendant that is supposed to aid Bishop in his genetics work.
Ninja Tribunal
S4
E26
Ninja Tribunal: The turtles find themselved abducted..not by aliens...but by ninjas. There's a new force on the scene. Actually it's an ancient force. The turtles have found themselves caught up in a seemingly endless battle between good and evil.