The Lonely Mutation of Baxter Stockman

The Lonely Mutation of Baxter Stockman is the 42nd episode of the 2012 TV series. Its airdate iwas on May 4, 2014.

Synopsis
Baxter Stockman gets mutated into a fly by Shredder for his consecutive failures. Meanwhile, The Turtles finally discover a retro-mutagen that can restore Kirby O'Neil to his human form. When Stockman-Fly finds out about the retro-mutagen, he kidnaps April and demands that the Turtles hand over the retro-mutagen in exchange for April.

Major Characters

 * April O'Neil
 * Stockman-Fly
 * Casey Jones
 * Donatello
 * Foot-Bots
 * Kirby O'Neil
 * Leonardo
 * Michelangelo
 * Rahzar
 * Raphael

Minor Characters

 * Ace Duck (Cameo)
 * Shredder
 * Splinter

Cast

 * Sean Astin as Raphael
 * Jason Biggs as Leonardo
 * Greg Cipes as Michelangelo
 * Rob Paulsen as Donatello
 * Hoon Lee as Splinter
 * Mae Whitman as April O'Neil
 * Josh Peck as Casey Jones
 * Kevin Michael Richardson as Shredder
 * Clancy Brown as Rahzar
 * Phil LaMarr as Baxter Stockman/Stockman-Fly
 * Keith Silverstein as Kirby O'Neil

Plot
The episode opens in a parking garage, with Baxter working. However, this is cut short when the Shredder and Rahzar walk in, scolding him for creating these useless mutants, including a duck. Baxter explains that it quacks, flies, and knows Taekwondo, but this is obviously not enough to please the Shredder. Baxter then says that he has devised plans for pigs and rhinos, but this still doesn't get himself off the hook. The Shredder knows that Stockman has failed him one time too many, and Rahzar begins approaching the scientist with the intention of severely harming him, but Shredder has a much more suitable fate in mind - mutating Baxter. Shredder presses a button on the controller that triggers the bottles on Baxter's neck brace to crack, slowly spewing the contained ooze all over him. Shredder and Rahzar then leave him behind to mutate....

Meanwhile, at the Lair, Donnie is laying the final touches on the antidote for April's father. April admires his progress, though she starts getting quite tired of observing, and nearly falls asleep. However, after Donnie administers a couple drops of April's unique DNA, the cure is perfected after the mutant cells turn normal. Donnie briefly celebrates, causing all of the other Turtles to enter the room. Donnie explains what type of achievement he has made Retro-Mutagen, which he made two doses, one for April’s Father and one for Splinter. Splinter wonders about being human once more, but he claims he will only take it into consideration once April's father is saved. Leo asks Donnie if he could make more of the Retro-Mutagen, and Donnie replies that 10 canisters of Mutagen are usually needed to refine just a droplet of Retro-Mutagen, but he has no more mutagen left in his lab. On the bright side, they can still look for April's dad and restore him to a normal. April is speechless when she hears this information and kisses Donnie on the cheek, which cause him to pass out.

Meanwhile, in the parking garage, Stockman has transformed into a gigantic fly, due to a smaller fly that touched his nose before his mutation. He begins wandering around and stumbling here and there. He spies a nearby chocolate bar on the floor, and devours it with the usage of acidic spit. After this, he ponders over how he is going to become twice the man he once was, and figures that, if he extracted some DNA from a human being and combined it with his own, he will be himself. He reveals this plan, but Rahzar and some Foot-Bots then show up, wanting to know the outcome of Baxter's ugly mutation. Baxter chooses to hide and snaps several wires in half, which kills all of the lights. Baxter manages to dispatch a Foot-Bot quickly and escapes unnoticed.

Elsewhere, in New York City, WingNut spies a billboard with a woman pictured on it. He uses his two prominent fangs to bite into her neck, emphasizing his similarities with vampires. The Turtles soon arrive to witness this and converse about not getting WingNut riled up during his capture. April heeds this, and they all approach with relative caution; Donnie prepares a syringe to administer the antidote from behind, but Baxter manages to hear the Turtles and decides that he should take advantage of the situation and squash them like bugs.

Baxter comes into the equation and captures April, holding her tightly in his hands. This distracts the four brothers and clearly gives them away, causing WingNut to fly off into the night sky. The Turtles are stunned to find Baxter in the form of an arthropod, but the Mutant then sees the Retro-Mutagen. He takes an immediate interest in it, though it ends up falling out of Donnie's grasp, and it breaks open when it hits a car down below. Thus, Baxter chooses to abduct April and tells the Turtles to bring more Retro-Mutagen. He flies off with her back to his lab. The Turtles retreat, and Leo informs Master Splinter of what happened. Splinter approaches Donnie, who apologizes for not being able to change him back to normal. Splinter says that he does not need to be a human, as he is already fortunate enough to live a life with even the slightest bit of humanity. After Splinter tells his son to focus his efforts into the search for Kirby, he contemplates the old picture of his family members. Casey shows up, desiring to beat up someone, and Leo tells him that he & his brothers will need Casey's help to find April. He also tells him that he can use his hockey stick to hit someone (more than once). Raph and Mikey are both responsible for finding WingNut, and Mikey decides to put on his Turflytle Costume, much to Raph's dismay.

Meanwhile, in Baxter's typical lab, he has places April on the ground, and tells her not to move a muscle. April tries to avoid being harmed by telling Baxter that Donnie could synthesize another antidote in a couple hours. However, Baxter refuses, and instead wants to perform a line of risky experiments on April (much like the Kraang). Meanwhile, in a NYC alley, Raph and Mikey are sitting on a ledge of a building, and they spot Kirby in the near distance. Back at Baxter's lab, Baxter ties up April after she tries to attack him with her Tessen, and uses rope to suspend her from the ceiling, hanging over the very same vat of Mutagen Ooze that mutated Dogpound into Rahzar. April says that, by mutating her, he will NOT have his wish or former life back, but the troubled Mutant seems to express disagreement. Baxter renames himself "Stockman-Fly".

Then, Donnie, Leo, and Casey arrive just when Stockman-Fly is able to spit a bunch of goo on the rope holding April. They try to be stealthy, but Casey gets distracted by a tiny fly, and kills it, bringing Baxter's attention to Leo, Donnie, and Casey. While the team of heroes engage the wild fly, Donnie manages to step out of the fight for one moment and successfully reaches April's location. However, the rope instantaneously crumbles and April begins to fall into the vat, narrowly missing Donnie's reach.

Everyone pauses in shock and they go to examine the scene. Stockman-Fly tries to filly into the mutagen, but Casey knock him out of the way. Leo and Donnie went to see what happen to April, she soon reaches her hands up and emerges out of the mutagen, only to find that she has not changed at all. Donnie then remembers that she is immune to Mutagen, and this is what caused her DNA to be so effective in the making of the Retro-Mutagen as well. The Turtle brothers then make a desperate dash to escape, but Rahzar and his squad of Foot Warriors bust in through one of the brick walls and impede their path forward. Rahzar then takes notice of the glowing, vermillion vial of Retro-Mutagen and makes a personal resolution to claim it, as he orders his robots to retrieve it to him.

Back outside at the city, Mikey & Raph start flying around with their Turtle Flyers, attracting WingNut's attention (just like in "The Mutation Situation"), and he starts chasing Mikey. He becomes quite frightened when he catches wind of the fact that WingNut is now chasing him. Raph then calls Leo, and sarcastically threatens to allow Mikey to be eaten if Leo does not come to their aid in a short matter of time. Leo then agrees, grabs the vial, and escapes with it, along with his brothers. Baxter is very enraged when he witnesses this and immediately leaves his lab.

Soon, Raph and Mikey land WingNut safely on a rooftop, while April leads the Turtles to their location seemingly by using her mental powers. She approaches her father to talk him down and calm him down. This works and, once again, just as Donnie prepares to give him a sample of the antibody, the canister is snatched from his grasp by Stockman-Fly. Donnie is annoyed of this. Just then, some Foot-Bots with gliders of their own begins to chase Stockman-Fly. The turtles set out to find Stock-man-Fly, leaving April, Casey and WingNut behind.

Stockman-Fly tries to open the canister, but Mikey knock it off of his hands and Raph catch it. The Foot -Bots appear to chase the turtles all over the city. Stockman-Fly manages to get the vial only to follow by April and Casey riding WingNut. Stockman-Fly tries to loose them, but he foolishly collides with a billboard and the canister is dropped from his hand. The canister shatters, although April has not lost any hope and she pulls the wings back on her father and she makes him go underneath the spilling fiasco, where a drop of the ooze skims his face.

The Turtles then throw a cloth over WingNut and he lands on the ground, reverting back to his normal self. The team celebrates their accomplishment while April is grateful to have her father back. Kirby, who is now human again, is wondering what has happened and why is he naked. Mikey tells Kirby that he will explained the situation later. April is so content for having her father back to normal that she thanks Donnie and kisses him again, causing him to humorously insult Casey by doing a victory dance right in front of his face. Casey gets back at Donnie, however, by tripping him with his hockey stick. Leo notes that Stockman is out of sight, and Mikey begins to run his mouth about Stockman-Fly being his 'ultimate enemy'. Raph gets annoyed about this, and tells him to stop saying, "Buzz, buzz!!". Mikey agrees, but turns the tables on Raph, by putting his Turflytle antennas on top of Raph's head, and says, "Buzz, buzz!". This annoys Raph, and he angrily chases Mikey as he runs off.

Back at the lair, the Turtles stand in their sensei's presence and Donnie says sorry for how he couldn't turn him back to human. Splinter reiterates that he is fine with being abnormal and that he has adapted to a life that he could not accept as being a part of the human race again. He explains that the lair is his home, and the turtles are his family. Upon hearing these words, the Turtles are fond with sensei's choice.

Meanwhile, the Foot-Bots drag a dazed Stockman-Fly all the way back to the Foot HQ. They then pause and Rahzar approaches. He says that he wants to squish Stockman here and now, but Shredder has "other plans". Shredder then says that Stockman will need to create one last Mutant to be evaluated -- and if he messes up, the villain will pluck his wings. Knowing that his hateful life will continue from this point, Stockman-Fly thanks Shredder for his 'generosity', while Rahzar tosses a chocolate bar for Stockman-Fly to eat.

Gallery
The Lonely Mutation Of Baxter Stockman/Gallery

Trivia

 * Baxter held a picture of a mutant called Ace Duck, which was an original character from the 80's cartoon that started up as an action figure.
 * Baxter says he's planning on making mutant pigs and rhinos, which foreshadows the appearences of Bebop and Rocksteady
 * When Mikey was picturing himself as a human, he was Greg Cipes, the voice actor that plays him.