The Joining (2) The Batman : Season 4 Episode 13
TV-Y7 The CW 22m int(0)
Aired: May 5th, 2007 @ 10:30 AM EST on The CW
Martian Manhunter's prediction of an alien invasion by The Joining has come true. As Batman tries to stop them on his own, he learns that even working with a team will stop The Joining.