The Lion King II: Simba's Pride

King Simba and Queen Nala's newborn daughter Kiara is presented to the gathered animals of the Pride Lands. After Kiara has grown into a young cub, she becomes frustrated with her father's parenting, so Simba has his childhood friends Timon and Pumbaa accompany her out of concern for her safety. Over Simba's protestations, Kiara wanders off alone into the barren Outlands — home to an enemy pride of Scar's exiled followers called the Outsiders — and encounters another cub, Kovu. After narrowly escaping a crocodile-infested river, the cubs befriend each other. When Simba comes across Kovu and Kiara playing, he misinterprets it as fighting and confronts Kovu just as he is confronted by Zira, Kovu's mother and the Outsiders' leader. Simba later explains to Kiara the responsibilities of queenship and that everyone is a part of each other. Zira, who is secretly training Kovu as an assassin, realizes she can use her son's friendship with Kiara to kill Simba and usurp the throne. Meanwhile, the spirit of Simba's late father, Mufasa, plans to bring Kiara and Kovu together to reunite the Pridelanders and the Outsiders.
Years later, an adolescent Kovu rescues Kiara after his older siblings Nuka and Vitani start a wildfire during her first solo hunt. Alerted to Kiara's location, Simba accepts Kovu's offer to join the Pridelanders, though he remains suspicious of his motives. Later, while training Kiara in hunting, Kovu begins reconsidering his mission to kill Simba and tells Kiara he is not Scar's actual son. Simba's friend and advisor, Rafiki, leads the lions to the jungle and helps them fall in love by introducing them to the concept of upendi. At Nala's persuasion, Simba has Kovu spend the night inside Pride Rock with the rest of the Pridelanders. Vitani, however, secretly sends word back to Zira about Kovu's failure to kill Simba.
The next morning, Simba shows Kovu the Pride Lands and tells him the truth about Scar. The Outsiders ambush Simba and trick him into thinking Kovu has betrayed him. In the ensuing battle, Nuka is killed and Simba escapes, but injured. When Zira angrily slashes across his eye, leaving a scar, Kovu turns on her and pleads Simba for forgiveness but is instead exiled. An exasperated Kiara gets into an argument with her father, making him realize his irrational behavior by saying that he will never be Mufasa, and runs away from Pride Rock to search for Kovu herself.
After reuniting, Kiara and Kovu return to the Pride Lands and successfully convince the Pridelanders and Outsiders to stop fighting. However, an enraged Zira tries attacking Simba, but instead, Kiara pushes her out in the way and Zira falls off a nearby cliff in a river to her death.
Following the battle, Simba welcomes the rest of the Outsiders, including Kovu, back into the Pride Lands, thus finally reuniting them with the Pridelanders. During a later celebration on Pride Rock, Simba witnesses Mufasa's spirit congratulating him.