You will Watch Teen Titans Episode 21 online for free episodes with HQ / high quality. Stream cartoons Teen Titans Episode 21 Titan Rising Terra reappears, claiming that she has now managed to completely control her powers. Triumphantly, she demonstrates her new and impressive control of her powers, asking if she is allowed to join their team. However, Raven feels there is something wrong with Terra and is a bit jealous that Terra can control her powers in so little time, while Raven needs to meditate every day to keep control. This fact creates a tension between them; until the girls join forces to stop Slade.