Heroes Join Forces is a 2015 English-language series directed by Thor Freudenthal and produced by Saumya Daan under the banner of Reliance Animation in collaboration with Rohit Shetty Picturez. The crossover sees Barry Allen / Flash and Oliver Queen / Arrow team up to take on Vandal Savage, who is looking for Kendra Saunders and Carter Hall, the reincarnations of Hawkgirl and Hawkman. The music was composed by Simaab Sen. The show has a total of 26 episodes during it's run of 2 seasons. Distribution rights for the series were acquired by Classic Media. The crossover sees Barry Allen / Flash and Oliver Queen / Arrow team up to take on Vandal Savage, who is looking for Kendra Saunders and Carter Hall, the reincarnations of Hawkgirl and Hawkman.