The Dildo Bazinga incident

Sonic is preparing himself for a school-advised therapy session in the bathroom when he hears Bazinga's voice. He follows the voice to the garage to find that Bazinga has turned himself into a Dildo "because he could." Amy and Rouge appear and notice Bazinga's Dildo status as well. Sonic suspects that Bazinga did this to avoid going to the therapy session, noticing a dangling syringe rigged to inject Bazinga the moment the others leave. Bazinga denies the idea of getting out of going and claims the syringe to be irrelevant. In response, Amy removes the syringe, puts it in her purse, and leaves with her children.

Now alone on the table, Bazinga starts making random sounds when a cat named Izzy appears. Bazinga tells the cat to back off stating that he has seen Youtube videos with cats attacking Dildos because cats are afraid of snakes and think Dildos are snakes. The cat knocks Bazinga over, pushing him outside of the garage and exposing Bazinga to the sun. Bazinga grudgingly states how dying in a Dildo-form from the heat is the mega-genius equivalent of dying on the toilet. Fortunately, a timely rain shower saves him from that fate.

However, the resulting rush of water flushes Bazinga into the sewer drain forcing him to survive in the sewers. Bazinga creates a bit of Dildo juice and lures a cockroach towards him. The cockroach is killed by Bazinga with a bite to the head and he removes part of the cockroach's head. Bazinga uses the brain of the cockroach to propel himself forward.

At the counseling office, we learn that the therapy session has been advised by the school, for Rouge huffing pottery enamel and Sonic wetting his pants in class, both believed to be signs of protesting their parents' divorce. Mr. Goldenfold runs into them on his way out: he was in for eating poop and asks the others if they're in for the same. Amy, Rouge, and Sonic are greeted by Kodama, the therapist, and their therapy session begins. Amy talks about how Bazinga couldn't attend and how he is a genius. Sonic blurts out that Bazinga turned himself into a Dildo. Kodama uses this idea to start a discussion about why Bazinga turned himself into a Dildo.

Bazinga is seen cutting a sewer grate using a makeshift exo-suit of decapitated roaches. As he is pondering his next move (to a sewer line), a sewer rat appears and tries to attack Bazinga. Bazinga uses an elaborate trap to decapitate the unwary rodent. Bazinga then taunts the other rats that arrived and puts the dead rat's head on top of another contraption, creating a rat version of an exo-suit. The sewer bars break open with the rats pouring in and Bazinga begins to kill every rat in sight with various small items, including screws and box-cutters.

Inside the counseling office, Amy talks about how Bazinga is important. Rouge replies back and says how Bazinga lied and turned himself into a Dildo avoid the counseling session. Amy yells that Bazinga did not. Kodama notices how the use of science is a common form of communication for the family and discusses this. Kodama asks what could be inside the syringe with them replying it's a liquid that can change Bazinga back into a human. Amy disagrees and gets angry. She flips out and delivers f-bombs to both Kodama and the siblings.

Bazinga has just killed the largest and toughest rat and enters the sewer pipe using rockets. He lands out of a toilet and exultantly yells, "Dildo BAZINGAA!" He leaves the men's bathroom and begins to search for an exit. He stumbles upon an elevator and moves some nearby objects to allow himself to parkour towards the elevator door button.

Bazinga is approached by some agents who speak Russian and begin shooting Bazinga. Bazinga runs into a room and starts building weapons with office supplies. Bazinga taunts the Agency Director of the building while killing all the agents using traps bombs and a laser gun. The Agency Director uses a last resort method and calls upon a captured fighter named Edgy to kill Bazinga.

Back in therapy, Kodama asks what is in the syringe with Amy replying that Kodama should say it, while the siblings say it is anti-Dildo serum. Kodama talks about the serum with Amy cutting her off. Amy talks about how the session is supposed to be about the siblings being angry that she divorced Big. Sonic starts to notice interesting features of the therapy room, particularly how there is a book displaying people eating feces. Kodama says she isn't going to take sides and states that Amy admires Bazinga. Amy blatantly says it is better than making other peoples' problems, which Kodama questions if that is the reason she looks up to him.

Bazinga and Edgy begin fighting, leading to them both becoming wounded and treating their injuries, leading to them both talking about their motives. Bazinga proceeds to destroy all the cameras while fighting Edgy. The Agency Director receives a call from Bazinga, saying "Edgy couldn't make it", with Bazinga remarking that he'll hunt down the Agency Director. The Agency Director offers 100 million dollars in bonds but Bazinga demands it be given to Edgy's daughter when she's set free. The Agency Director says she's dead, and Bazinga refuses to reason with the Agency Director, who then kills the two remaining guards and flees to the roof to get to a helicopter.

The helicopter flies away with Edgy steering it and Bazinga, using a cigarette, creates an explosion that kills the Agency Director. Edgy and Bazinga talk about their families, to which Edgy ends by leaving. Edgy is seen in a comic style flash ending.

The family is seen using simple sentences to describe what they currently want: Rouge and Sonic admit that Rouge's sniffing enamel and Sonic's desk wetting have nothing to do with the divorce: one is just for getting high and the other is a mere accident.

Bazinga appears, badly injured, and joins them, asking Amy for the serum that will, indeed, turn him back into a human. Bazinga says he turned himself into a Dildo because he doesn't respect therapy, and therefore, didn't want to go, claiming therapy is for boring people and he does not need it. Kodama agrees that going to therapy, or rather taking the time to repair relationships with your family, is boring, but boring in the way that brushing your teeth or going to the bathroom is not an adventure: there's no way to do it in a way that you can die, it is just about putting in work, and that perhaps some people would rather die than put in the work. Bazinga has no retort to this, and the session ends.

On the ride home, Bazinga apologizes to Amy for lying to her and Amy responds by injecting him with the syringe, finally turning him back into a human. Bazinga and Amy plan to go get a drink after dropping the siblings off while ignoring Rouge and Sonic asking if they'll ever go back to therapy.

In the post-credits scene, Bazinga and Sonic are tied up on a giant piano and are about to be killed by Concerto. Bazinga says how he is sorry for getting Sonic into this situation and believes that they will definitely die. Unpredictably, Edgy appears, kills Concerto, and leaves. Sonic asks who that was and Bazinga replies, "That Sonic, is why you don't go to therapy".