Ra's returns, this time as a weakened old man in a wheelchair, following his too many uses of the Lazarus Pits, and sends his Society of Shadows into Metropolis to steal a powerful ancient artifact, the Shaman Staff. After Superman is unable to stop them he meets up with Batman, who has been tracking Ra's for a while. Batman also admits he considers Ra's one of his most powerful enemies, "more dangerous than the Joker and Lex Luthor put together", as he mentions.
Talia is also back, and impersonating Lois manages to trick and capture Superman. Ra's meets with Superman and reveals his new plan: to use the Shaman Staff to steal Superman's powers. He succeeds only until Batman arrives and puts an end to his plans by freeing Superman and making Ra's and Talia fall in an underground river.
Once again, the strong continuity and chemistry between some of the characters is great. For example, the little talk Lois has with Bruce/Batman, considering what they went through at the beginning of their relationship; the fact that Ra's actually cares enough about Talia to save her instead of getting his revenge against Superman; and the everlasting "rivalry" between Batman and Superman. Overall this was a good episode, and a great (but short) comeback for Ra's and Talia. Good thing their story-arc isn't over yet.