Injustice to Everyone

Episode 92 of Robin & Batgirl.
Joker and other villains are conducting a roast of Robin and Batgirl,and Jeffrey Ross was brought in as a star guest,but he distracts the villains while Robin and Batgirl escapes from the death trap,leaving the two heroes free to take down Joker,Penguin,Gorilla Grodd,King Cobra,Black Manta,Two-Face,Gentleman Ghost,Mr. Freeze,Riddler,Poison Ivy,Clock King,and Solomon Grundy.Jeffrey Ross delivered the final blow to Joker.Now,the two heroes rode to the R-Mobile and said goodbye to Jeffrey.The next day,Katana went to Robin and Batgirl's headquarters and asked help in stopping the three Injustice Gangs."There are three Injustice Gangs and I tried to stop them,alone.But I failed",Katana said."Well,do you know where are they?",Robin said."They're currently in Metropolis",Katana said.So,the three rode the R-Mobile and went to Metropolis.They went out of the mobile.Then,they got surrounded by the three Injustice Gangs.They took down the first ones:Owlman,Eagle,Owlgirl,Blue Bowman,Silver Cyclone,Scarlet Scarab,Hotwoman,Diveman,and Rubberband Man.Then,the second and third Injustice Gangs ran away.So,the three heroes went back to the R-Mobile.But,the villains made their own ways of escaping.Joker,Ultra-Humanite,Lex Luthor,and Shade used their jetpacks,Solomon Grundy swung from lamp post to lamp post,Cheetah,Tsukuri,and Copperhead ran fast,while Aresia and Star Sapphire flew.Later,they got their track back again.They got surrounded by the Injustice Gangs again.Now,they took down Shade,Solomon Grundy,Cheetah,Copperhead,Star Sapphire,Joker,Ultra-Humanite,and Lex Luthor.Then,Shade,Solomon Grundy,Copperhead,and Star Sapphire rose up and went with Tsukuri and Aresia."We're the Injustice Gang III",Aresia introduced.Robin and Batgirl took down Shade,Solomon Grundy,and Star Sapphire.After that,they took down Star Sapphire,Tsukuri,and Aresia.Now,the policemen came and arrested all of the members of the Injustice Organization(a combination of the three Injustice Gangs).Now,Robin,Katana,and Batgirl went to the R-Mobile.
Characters:Robin,Batgirl,Jeffrey Ross,Katana,Policemen
Villains:Joker,Penguin,Gorilla Grodd,King Cobra,Black Manta,Two-Face,Gentleman Ghost,Mr. Freeze,Riddler,Poison Ivy,Clock King,Solomon Grundy,Injustice Gang,Injustice Gang II,Injustice Gang III