Justice League Action - Season 1 - Eps 14: Speed Demon
After defeating Harley Quinn, Batman and Zatanna encounter Brother Night who used his dark magic to control the Batmobile and kidnapping Zatanna. With the help of Etrigan the Demon, Batman must save her, stop the Batmobile, and defeat Brother Night.
About Justice League Action

Title: Justice League Action
First Air Date: 2016-12-16
Last Air Date: 2018-02-10
Status: Ended
Rating: 7/10 (from 84 votes)
Language: EN
Seasons: 2
Total Episodes: 52
Network: Cartoon Network
Genres: Animation, Action & Adventure, Sci-Fi & Fantasy, Kids
Production Companies: DC Entertainment, Warner Bros. Animation
Synopsis
Batman, Superman and Wonder Woman lead the DC Super Heroes against their most infamous foes.