[s4e13] The Joining: Part 2 Now

The sound of the Joining's weaponry is an homage to the 1953 film War of the Worlds .

With the help of Lucius Fox and Alfred, Batman successfully activates the satellites, causing the Joining’s ships to crash and shutting down the invasion for good. Key Characters & Cast Voice Actor Bruce Wayne / Batman Rino Romano Dick Grayson / Robin Evan Sabara Barbara Gordon / Batgirl Danielle Judovits Alfred Pennyworth Alastair Duncan Martian Manhunter Dorian Harewood Lucius Fox Louis Gossett Jr. Major Impact & Trivia [S4E13] The Joining: Part 2

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 . The sound of the Joining's weaponry is an

Batman and J'onn attempt to infiltrate Wayne Industries to use its satellites to disrupt the Joining's signal. Major Impact & Trivia The episode ends with

Encouraged by Alfred, Batgirl and Robin disobey Batman’s orders to stay behind and join the fight, eventually holding off robots while Batman hacks the system.