Feeling old and tired, Bruce Wayne is reminiscing about past loves lost when Talia, daughter of R'as al Ghul, visits him in the Batcave. With her father long dead, she wishes to rekindle their romance and makes him an offer: She will give him eternal youth through use of the immortalizing Lazarus Pit, and they can spend the rest of their lives helping people through their philanthropic organizations.
Worried that Bruce might give in for all the wrong reasons -- and concerned that he may lose the honor of being Batman -- Terry decides to come along to make sure everything is as it seems. When he and Bruce discover the truth behind her offer, it turns out to be more bizarre than either could have imagined.
It's been years since Batman was last seen and Bruce Wayne secludes himself away from the resurgence of crime in Gotham. After discovering Bruce's secret identity, troubled teenager Terry McGinnis dons the mantle of Batman. With Bruce supervising him, Terry battles criminals in a futuristic Gotham and brings hope to its citizens.
Batman Beyond - Out of the Past Synopsis and Schedule