[s4e13] The Joining: Part 2 Review

The episode ends with Batman joining J'onn on the Watchtower space station, where he meets other heroes: Green Lantern, The Flash, Hawkman, and Green Arrow .

Batman and J'onn attempt to infiltrate Wayne Industries to use its satellites to disrupt the Joining's signal. [S4E13] The Joining: Part 2

During the invasion, even Gotham's villains—including The Joker, Penguin, Bane, and Mr. Freeze —fight alongside the GCPD to defend their city. The episode ends with Batman joining J'onn on