Cartoon Network’s Ben 10 franchise has been a staple of animated sci-fi television since its debut in 2005. Spanning four major series—Ben 10, Alien Force, Ultimate Alien, and Omniverse—plus a handful of movies, the adventures of Ben Tennyson and his transformative alien watch, the Omnitrix, have captivated young audiences for nearly two decades. With Ben 10: The Complete Series, fans were promised a comprehensive, all-in-one collection of every alien-fueled adventure to date.