In everyone's favorite Season 1 episode, Raven is subjected to too many puns and goes grimdark, prompting Beast Boy and Cyborg to venture into the Hot Topic dimension to save her.
While there, they encounter not one Raven, but several! Including Finger Guns Raven, a staple of forum avatars in the mid-noughties, but not including Lust Raven, who DOES exist - they saved her for the tie-in comics. Cyborg and Beast Boy help her fight her dad, who may or may not qualify as an orc (Ben has opinions), they all grow closer for it, and meanwhile Starfire and Robin... watch TV.
This episode carries a content warning for a discussion of rape in the DC comics universe between the 9:00-10:30 time stamps. It's come to our attention that we were wrong about the details, but the broad strokes are correct. More information is available on the character's Wikipedia page.