Since Barry become the Flash for five years, he’s now loved by the public. They even opened a Flash Museum to honor his achievements alongside Jay Garrick and he often hangs out with Wally, the brother of his girlfriend Iris. But then King Solovar, the leader of Gorilla City contacts Barry to warn him that the hyper-intelligent telepathic gorilla, Gorilla Grodd is back on earth. This time Grodd creates a machine to increase the brainpower of most of the animals in Central City and hopes to endanger all the humans' lives. When Barry’s pet turtle also gets his brainpower increased and is now under Grodd’s control, The Flash along with a few friends must backfire Grodd’s plan and decrease the brainpower of all the animals before humans become an endangered species…
