[s4e13]: The Joining: Part 2

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

The sound of the Joining's weaponry is an homage to the 1953 film War of the Worlds . [S4E13] The Joining: Part 2

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. With the help of Lucius Fox and Alfred,

During the invasion, even Gotham's villains—including The Joker, Penguin, Bane, and Mr. Freeze —fight alongside the GCPD to defend their city. Encouraged by Alfred, Batgirl and Robin disobey Batman’s