Batman: Assault on Arkham

Batman Assault on Arkham is a 2014 directtovideo animated superhero film that is part of the DC Universe Animated Original Movies. Jay Oliva and Ethan Spaulding direct, with a script by Heath Corson, and James Tucker producing. The film was screened at the 2014 San Diego ComicCon International on July 25, 2014, and it was released digitally on Julyand on physical media on August 12.

Batman rescues Riddler from a black ops assassination ordered by Amanda Waller, returning him to Arkham Asylum. Invoking Priority Ultraviolet, Waller captures criminals Black Spider, Captain Boomerang, Deadshot, Harley Quinn, KGBeast, Killer Frost and King Shark forming the Suicide Squad. Their mission is to break into Arkham Asylum and recover a thumbdrive in the Riddlers cane. While in Wallers employ, Riddler copied information on the squad, and is planning to make it public. She forces them to comply by threatening to detonate nanobombs implanted in their necks. KGBeast, who believes the bombs are a bluff, walks out on Waller and is killed as an example to the others.The six are deployed to Gotham City, where Penguin has been hired by Waller to give them arms, equipment, and a place to stay. While at his club, Killer Frost receives a personal mission from Waller to kill the Riddler, and Harley has a one night stand with Deadshot. Tensions immediately arise among the group, particularly between Deadshot and Captain Boomerang, who resents Deadshots assumption of the leadership role on the team. As part of the mission, Harley breaks into a doll store and begins trashing it. Batman arrives, demanding she tell him where Joker hid a dirty bomb. Batman has been ransacking the city in search of it, even resorting to interrogating Riddler for answers. However, Harley denies knowledge of the bombs location, and Batman has her sent back to Arkham. ........

Source: Wikipedia