T
he series involves a boy genius named Dexter, who
has a secret laboratory filled with highly advanced
equipment, hidden behind a bookshelf in his bedroom.
Access to this never-ending laboratory is achieved
by saying various passwords or by activating hidden
switches on the bookcase. Dexter is almost always in
conflict with his obnoxious older sister, Dee Dee,
who delights in playing in her brother's lab, often
destroying his inventions and creations.

Samurai Jack is the son of the lord who ruled
the area where Aku originally appeared on Earth, and
is banished to the future by Aku during their first
battle, where he is left in every episode to search
for a way home.
They fight villains that embody specific
menaces to children overall; such as