: Ben decides to sacrifice his own life to reset the Ultimatrix, which would grant the Ultimates their freedom from the device's control.
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 [S2E19] The Ultimate Sacrifice
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 decides to sacrifice his own life