Violent cartoon spinoff with classic superhero.
Parents need to know that this is a Superman story pitched on a more adult level. In addition to rampant violence and mass destruction of cities and machinery, people are killed (even animals and children, off-screen). Characters swear, at PG-level. Superman and Lois Lane have been "more than friends" (as Lex Luthor puts it), though we don't see them having sex. There is, er, super-nudity in a clinical setting, but shadows and amusing obstacles block our view of the, um, super-gear.