"The Joining, Part 2" is the thirteenth and final episode of the fourth season of The Batman.


The Joining has launched its attack on Earth and the key to defeating them is Wayne Industries' satellites. As Batman and Martian Manhunter attempt to penetrate Wayne Towers, Alfred encourages Batgirl and Robin to disobey Batman while the battle for Earth begins.

Voice Cast and Characters


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"The Joining, Part 1" "The Batman/Superman Story Pt. 1"
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