The Invasion, Part 2
Teenage Mutant Ninja Turtles (2012 TV series) episode
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Season Code: 226
Episode: 52
Original airdate September 26, 2014
Written by John Shirley
Producers: Vladimir Radev
Directed by Alan Wan
Voice Direction Andrea Romano
Supervising Director  Ciro Nieli
Episode chronology
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"The Invasion, Part 1" "Within the Woods"

Teenage Mutant Ninja Turtles Season 2
October 12, 2013 - September 27, 2014
List of Teenage Mutant Ninja Turtles episodes


  1. The Mutation Situation
  2. Follow The Leader
  3. Invasion of the Squirrelanoids
  4. Mutagen Man Unleashed
  5. Mikey Gets Shellacne
  6. Target: April O'Neil
  7. Slash and Destroy
  8. The Kraang Conspiracy
  9. The Good, The Bad, and Casey Jones
  10. Fungus Humungous
  11. Metalhead Rewired
  12. Of Rats and Men
  13. The Manhattan Project, Part 1
  14. The Manhattan Project, Part 2
  15. Mazes & Mutants
  16. The Lonely Mutation of Baxter Stockman
  17. Newtralized!
  18. The Wrath of Tiger Claw
  19. Pizza Face
  20. The Legend of the Kuro Kabuto
  21. Plan 10
  22. Vengeance is Mine
  23. A Chinatown Ghost Story
  24. Into Dimension X!
  25. The Invasion, Part 1
  26. The Invasion, Part 2

Season 1Season 2 - Season 3Season 4 - Season 5

"The Invasion, Part 2" is the twenty-sixth episode of the second season of the 2012 TV series, the fifty-second episode overall in the series, and is also part 2 of 2 of the Season 2 finale. It aired on September 26th, 2014.


As the chaos of the invasion grows, Donatello, April and Michelangelo must search for the others and make an attempt stop the invasion once and for all.


Major Characters

Minor Characters


The invasion is underway, as robots, Kraang droids, and Mutagenic crystals cover the city. Donnie, Mikey, and April watch the news from her apartment. April starts scolding herself for bringing Irma to the Lair. She promises to set things right, wanting to find Leo, Raph, and Casey, but Kirby begs her to stay with him in safety. Raph sends Mikey a text that he and Casey are on their way, but are being chased by Kraang Prime.

Kraang Prime continues to spread Mutagen throughout the city. Raph and Casey are nearly captured by Kraang Prime, but the Earth protection force comes forward and they begin to attack in retaliation, giving Raph and Casey a chance to escape.

Leo continues to battle the Shredder's Foot-Bots, evading their arrows. He demands Shredder face him, but Shredder denies this, stating that Leo is beneath him. Leo begins to tire from the attacks, but the Foot does not let up. Tiger Claw asks the Shredder if he can finish off Leo and the Shredder tells him not to do it yet, as he wants to see Leo suffer.

Splinter continues to avoid the Kraang in the sewers. He discovers one of Leonardo's knives in the head of one of the robots but is then attacked by more Kraang. Splinter is soon cornered, but Leatherhead appears and joins the fight, pummeling the robot bodies. Splinter shouts for him to stop and Leatherhead regains his focus. Splinter expresses his thanks and asks Leatherhead to help him find the Turtles.

Leo fights off more Foot-Bots at the construction site. When his enemies seem to be defeated, Leo pauses, but a Foot-Bot on the ground grabs his leg and Leo loses balance, causing him to roll down the embankment and into the ice water collected in the pit below him. Leo soon comes out of the water, chilled and exhausted, but unwilling to face away from his enemies. The Shredder then gives Tiger Claw, Fishface, and Rahzar the go-ahead to attack Leonardo, and they do so. Leo fights them off and, amazingly, he defeats all of them, but the Shredder then strikes him in the back of the head, causing Leo to become completely unconscious. Tiger Claw picks up the senseless and battered Leo and looks at his T-Phone, seeing the text messages from Mikey telling Leo to come to April's home. The Shredder demands his minions to draw everyone in the apartment out by throwing in Leo. As Tiger Claw and the others leave to do this, the Shredder is confronted by Splinter, who demands to know where Leo is. The Shredder states that he has 'taken' Leonardo much like he took Miwa from Splinter. Splinter surges forward...and the two old enemies fight.

Meanwhile, in April's apartment, she and Donnie wake up Kirby, who thinks that the Kraang invasion was a dream, but Mikey tells him that it's actually happening. Raph and Casey then enter, saying that Kraang Prime is coming. Mikey throws his arms around Raph and Raph says that he is glad to see his little brother. April embraces Casey and says that she was worried she'd lost him forever. Donnie says to everyone that Leo is still out in the city, but Donnie stops talking when Leo is thrown through the window. Leo is unconscious and still breathing, but Mikey points out that his shell is cracked. Tiger Claw then tells the Turtles to come out and face them. Foot-Bots storm the apartment, but Donnie and Casey take them down. Rahzar meets them at the open door, but Mikey, in retaliation for Leo, throws a couch on top of him. Kirby leads them all to his old VW party wagon from his early days as a hipster, just as Mutagen is poured all over him, and, once again, Kirby is mutated. The others escape and drive away from Kraang Prime, ducking into alleys.

Splinter and the Shredder continue to fight and the Shredder states that Splinter is weak, but Shredder is still strong with his rage. After Splinter knocks down the Shredder, however, Splinter tells him that anger is something that doesn't last. The Shredder ignores Splinter's wisdom and kicks him against a machine, causing lead pipes to fall on top of him. As the Shredder is poised to drive his gauntlets between Splinter's eyes, Leatherhead leaps on top of the Shredder and grabs him inside of his jaws, trying to crush him. However, the Shredder also defeats him and kicks him into the water at the bottom of the pit. Now, full of righteous anger, Splinter starts to battle the Shredder with newfound strength and they both fall into the pit after Leatherhead.

Meanwhile, the party wagon drives up to a garage. Leo cannot be moved, but Casey will protect him while he searches for his father and little sister. Raph, Donnie, April, and Mikey return to the Lair to find Splinter. April cannot sense Splinter anywhere. Donnie takes charge, telling Mikey and Raph to gather whatever sentimental item they want to keep with them. They will find Splinter and then they will leave town. Raph grabs his photo of Spike, Donnie bids goodbye to Timothy, stating that they will return if they can and if not, in 70 years or so, he should thaw and hopefully find a better world. Mikey collects ice cream kitty from the freezer. As April looks around the Lair, reliving memories of her time there, her head is filled with visions of Splinter and Shredder battling. She follows it to the end of a drain pipe where they are trapped behind bars and only able to watch and shout words of encouragement to Splinter as he battles Shredder. Although Splinter is able to send his enemy through a wall, Shredder strikes him down and throws him into a septic tank. This enrages Raph beyond words and only Mikey can calm him, as he throws his arms around his brother and assures him that Splinter is a master ninja and will be fine. Raph buries his head in Mikey's shoulder. April sniffles and tells Donnie that they cannot leave.

They take the Turtle Mech out and battle the Kraang and seem to hold their own, stomping on them, spewing fire and dropping heavy dumpsters on them. They attempt to attack Shredder's lair, but Kraang Prime fights against the Turtle Mech. April and Raph panic, but Mikey still has hope as Donnie launches a barrel of waste at Kraang Prime's face. Kraang Prime tells them that they have no right to stop their invasion. The Kraang were the ones who found the earth, who mutated monkeys into humans and now, the Earth will be mutated with the same indifference. The Turtle Mech continues to fight against the strength of Kraang Prime's robotic suit, but the sheer force of the battle is damaging the suit's weapons. Donnie tries the electric harpoon, even though it may fry the mech. Launching one end to the city's power grid, the other end lands on Kraang Prime's face and electrocutes it. This causes all of Manhattan to blackout, but the robotic body Kraang Prime uses falls. The victory is short-lived as Kraang Prime climbs out and attacks the mech, which is now useless. April uses the power of her mind to attack Kraang Prime as Casey drives the car in it. Everyone climbs in and drives off.

Donnie covers Leo and apologizes for not listening when he was told that they should leave the city. April says that they can all go upstate to North Hampton to her family farmhouse, which is empty and isolated. Casey agrees. April asks if he found his family, but Casey says that he couldn't find them, meaning that they could be gone for good. April then comforts him by laying on his shoulder. Mikey asks Raph what will happen next, but Raph, for the first time in his life, doesn't know. Mikey says that he misses Splinter.

Meanwhile, Splinter is washed down a sewer tunnel into a junction where the mutant Karai grabs him and lifts him out of the water. As she touches him, Splinter gives a gasping breath, and Karai jumps back into the water and disappears.


"Raph: The Kraang Perfected the Mutagen, They want to turn Earth into Dimension X!

Casey: Wicked!

Raph: Wicked?! Are you crazy?!"

" Donatello - We’ll be back Timothy and if we don’t make it you should defrost in about mmm … 70 years or so. Hopefully the world is a better place by then"

"Kraang Prime- Lowly insects do you think Kraang can be stopped? It was Kraang that found your planet millions of years ago, it was Kraang that used mutagen on the monkeys turning them into lowly humans and it is Kraang who now transforms your world. (Laughs)

Michelangelo- And it will be Kraang who will be kicked in the shin!"


Leonardo in snow and mud.png
  • Much of the fight between Leonardo and the Foot Clan is adapted almost verbatim from What Goes Around... ...Comes Around! (and by proxy, The Shredder Strikes Back, Part 1). These events were also depicted with major alterations (including Raphael being attacked instead of Leonardo) in the 1990 Movie.
    • Just as in the Mirage version, this 2012 adaptation of this scene involves Leonardo in a hopelessly outnumbered fight against countless Foot Clan above-ground during snowfall. Leonardo manages to evade them for a while, until he finds himself at a construction site, falls down a steep slope into a pit of mud, and is cornered and brutally defeated (but not killed) by the Shredder, before being thrown crashing through the window of April's apartment above the Second Time About shop. Fighting continues inside the apartment and the group is forced to evacuate. Leonardo is down for the rest of the fight, being carried off by his brothers to safety. The primary differences between these versions of events are:
      • The group in April's apartment are not preparing for Christmas celebrations. Instead, the Kraang are simultaneously launching a full-scale invasion of New York City and the group is taking cover there.
      • The building does not go up in flames.
      • Splinter is not present in the apartment and does not escape the city with the others.
      • April's dad Kirby is present, though he doesn't successfully escape with the others.
      • The group gets away in Kirby's old Party Wagon. In the Mirage version, they skip April's own VW van and instead find a U-Haul.
      • The group does not flee the city immediately after leaving the building and Kirby behind, and additional events involving a return to their lair, searching for Splinter and fighting Kraang Prime in the Turtle Mech occur before their final decision to abandon the fight and flee the city.
      • The group flees to an O'Neil farmhouse in "North Hampton" in upstate New York instead of to the Jones farmhouse in Northampton, Massachusetts.
    • Despite the differences, the end of the episode mimics the happenings in Silent Partner.
  • When Kraang Prime faints, there's a brief appearance of a wind-blown newspaper with an article about a dinosaur man resembling a triceratops as a reference to the Triceratons.
  • The Kraang who find Splinter in the sewer prior to his meeting up with Leatherhead shout "Exterminate! Exterminate!" This is likely a nod to the Daleks of the long-running science fiction series Doctor Who, as Exterminate is their most oft-repeated line. The Kraang and Daleks in their base forms bear some resemblance to each other, both of them appearing as tentacled aliens with prominent brains.
  • There is a Horror and Sc-Fi Film Festival being held in the movie theater, ironic to the events happening in the episode.
  • Mikey shouts “Turtle Mech Power!” A nod to the classic phrase “Turtle Power!”
  • When April is reminiscing over her life with the turtles, she is strangely shown to be wielding more than one tessen.
  • This is the final episode to have Dominic Catrambone voice Leonardo as he will be replaced by Seth Green in the next episode.
  • This is the last episode with animation produced by Technicolor Animation Productions.