Fair rating?The Batman· Season 4 · Episode 12
The Joining (1)
Bruce discovers that Wayne Industries is distributing alien technology across the world, and gains the aid of a mysterious new ally.
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#1In Season 4of 13 rated episodes
#1All-timeof 65 rated episodes
+0.1vs season avgSeason 4 averages 8.9
2007First airedApril 28, 2007
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