Dwayne “The Rock” Johnson plays the role of a primatologist named “Davis Okaye” alongside N.Dennis Harris as “Dr. Kate Caldwell” a genetic engineer who has designed a gas that causes genetic mutation with significant changes in the body. The latter was stolen by Caldwell ex-company to sell it as weapon of mass destruction. The experimental stage of this gas went out of control, the samples were lost and reached the hands of three animals who all gets intoxicated and go on a rampage. Which is why OKaye and Caldwell go on a journey together to find a cure and stop the destruction. Despite being an action movie you can enjoy different funny parts. Also, the animation done on some of the animal and the effects on some of their actions is very fascinating. Finally, watching the movie in 3D makes it even better!