The episode begins during a standard battle where Ben, as , displays uncharacteristic brutality. It is soon revealed that a glitch in the Ultimatrix has caused the DNA simulations of the Ultimate aliens to develop their own consciousness. These "Ultimates" view Ben as their captor and attempt to trap him within the Ultimatrix to take his place. Ben's Choice
: Ben walks into a pit of "laser fire" intended to destroy him. However, the Ultimatrix recognizes his supreme act of selflessness. Resolution The sacrifice triggers a security reset of the Ultimatrix. [S2E19] The Ultimate Sacrifice
: Azmuth later arrives to fix the glitch, ensuring future transformations remain reflections of Ben rather than developing independent personalities. The episode begins during a standard battle where
Inside the device, Ben is confronted by the sentient forms—including , Ultimate Spidermonkey , and Ultimate Big Chill —who feel they have been "born" into a life of combat and slavery. Realizing the gravity of their existence and the pain they feel, Ben makes a pivotal decision: Ben's Choice : Ben walks into a pit
In the episode "" (Season 2, Episode 19 of Ben 10: Ultimate Alien ), Ben faces a revolt from his own powers when the Ultimate forms inside the Ultimatrix achieve sentience and demand their freedom . The Conflict: Sentient Ultimates
: Ben decides to sacrifice his own life to reset the Ultimatrix, which would grant the Ultimates their freedom from the device's control.
: Instead of dying, Ben is safely ejected from the device.