"Fall"

Plot Summary
As Beast Boy and Raven go on their first date, they are at a restaurant talking things over when suddenly, they are contacted by Robin who informs them, Slade has returned again with a new evil plan along with Terra as his apprentice again (but completely reluctant on working with him this time and will be killed if she tries to escape from Deathstroke). The six Titans do everything in their power to free Terra and stop Slade. However, they also suspect Blackfire to be part of Deathstroke's plan considering the first time she came to Titans' tower was all a plan to imprison Starfire and to fill her place as well as that Terra didn't always work for Deathstroke when she first met the Titans.

Transcript
"Thunder Run" transcript