After being murdered by corrupt colleagues in a covert government agency, Al Simmons makes a pact with the devil to be resurrected to see his beloved wife Wanda. In exchange for his return to Earth, Simmons agrees to lead Hell's Army in the destruction of mankind.

Set in the African savannah, the film follows Kion as he assembles the members of the 'Lion Guard'. Throughout the film, the diverse team of young animals will learn how to utilize each of their unique abilities to solve problems and accomplish tasks to maintain balance within the Circle of Life, while also introducing viewers to the vast array of animals that populate the prodigious African landscape.