Quick look: Codename: Kids Next Door: Operation Z.E.R.O.
The villains of the Kids Next Door, lead by Father, join forces to resurrect the Ultimate Evil, Grandfather, a tyrant who once ruled the world many years ago when most of the villains were themselves kids. However, Father disgraced him that he can't even try to destroy the KND and the Villains were quickly betrayed when they are turned into Senior Citizombies, creatures that are immortal and can transform any living creature into one of them and slaves who are forced to make Tapioca to refuel Grandfather so he can find and destroy the Book of K.N.D.
A group of misfits encounter a young Yeti named Everest, and they set off to reunite the magical creature with his family on the mountain of his namesake.
Searching for a safer habitat, the prehistoric Crood family discovers an idyllic, walled-in paradise that meets all of its needs. Unfortunately, they must also learn to live with the Bettermans -- a family that's a couple of steps above the Croods on the evolutionary ladder. As tensions between the new neighbors start to rise, a new threat soon propels both clans on an epic adventure that forces them to embrace their differences, draw strength from one another, and survive together.
When a scam goes horribly wrong and leaves the neighborhood kids furious, the Eds embark on a journey to find Eddy's brother in the "Ed, Edd, n Eddy" series finale.