Do other gorillas act any different? What makes Grodd so special?
The Flash interrupts Gorilla Grodd as he eats his own father's brains. I'm sure that's some sort of faux pas in Gorilla City.
"He can talk! He can talk! He can talk! He can talk! He can talk!" "I can siiiiiiiiiiiiiing!"
Meanwhile, Iris remains trapped inside the Speed Force with a few other people from Central City. They talk about not being hungry and not understanding television shows.
Technically, they were only dead and didn't know it in the Flashwhatevers of the final season. And that Flashwhatever took place in a sort of timeless limbo where they were all just hanging around until all of the people who experienced the island with them died.
The Speed Force destroyed a South American civilization. The Speed Force zapped a tribe of gorillas and made them faster and smarter. The Speed Force trapped the Tuskegee Airman inside it. The Speed Force created The Flash by zapping him and some chemicals.
Oh! The Gorilla Elders tell Flash what Turbine told him last issue: The Flash must keep running to save the world! He's part Jesus Christ and part Forrest Gump!
Grodd interrupts the lesson and begins killing monkeys. But just as he's about to kill The Flash, The Flash remembers who he is! He's a little kid that once took a picture of a Gorilla with his Jay Garrick brand camera but then the gorilla knocked over the bus and almost ate him and he was so scared! But his mother came to his rescue and threw the camera at the Gorilla's head, making it angrier! Luckily, some hunters shot it with a tranquilizer dart at the exact same time, so everyone was safe. Anyway, The Flash remembers he can run fast and avoids Grodd's deadly headbutt!
The pillars in the underground cave they're in aren't fast enough to dodge Grodd's headbutt and collapse. And then the roof collapses as well! Grodd is trapped under the rubble but Barry and some of the Elders escape. The Elders then send Barry on his way to run and run and run and save the world!
Back in Central City, Patty requests a leave of absence and heads to Guatemala City to investigate a cold case. It looks like she'll be running into a drug cartel down there run by the Weather Wizard.
Barry Allen arrives home to find the biggest cliche in comics waiting for him: bigotry against costumes!
I don't know why Dr. Elias is leading the rally. Maybe he's mad that The Flash decided to risk DC Continuity by misusing his Cosmic Treadmill.