Sisters

S1 E2: When a mysterious alien probe comes to haul Starfire (voiced by Hynden Walch) away, sweet-natured Star has no idea why it came. And when Starfire's sister Blackfire stops by to visit, Starfire just wishes she would leave. Blackfire's wild, cool, and hip--everything Starfire's not. And the other Titans seem to like Blackfire so much, Starfire thinks they won't need her around anymore. But just as Star's thinking about leaving, a couple of alien thugs, Kai and Cron, show up to take her away. Can Robin save Starfire? Will Starfire find out why these nasty aliens are after her?