As these super-powered sidekicks and teenagers continue to grow and mature into young adult characters, their battles begin to gain greater importance and result in tougher consequences. Led by Nightwing, formerly known as Robin, the Teen Titans realize that growing up can mean growing apart. After a monumental battle against Trigon in which the heroes must sacrifice one of their own to defeat the satanic creature, Wonder Girl, Cyborg, Changeling, Starfire, Jericho and Nightwing must deal with the fact that lifetime friendships may not be enough to save their group from external threats and interpersonal issues.