After Kion uses the Roar of the Elders to protect his best friend, Bunga from Cheezi and Chungu, Janja gathers his clan together inside of the den, and proceeds to scold Cheezi and Chungu for allowing themselves to be intimated by the roar of a lion cub.
After Rafiki informs Bunga of his immunity to snake bites, Bunga mistakenly interprets this to mean that he is immune to everything, and after irritating a porcupine, who tells him to play in a volcano, decides to do so.
There, he is confronted by Janja, Cheezi, and Chungu and two other members of his clan. But before they can attack, Fuli rescues him from their clutches, and the rest of the Lion Guard soon catch up to assist them. In the end, Janja, Cheezi and Chungu are left stranded on a log in the middle of the lava.
Cheezi and Chungu are seen standing in the Outlands with the volcano seen in the distance. Janja then finds Mwevi and Mwezi in his den and chases after them. Later on, after the hyena trio is defeated by the Lion Guard, they head off in the direction of the volcano.
Janja and Ushari discuss a plot about how to bring back Scar and defeat the Lion Guard. While Ushari tries to use Makini's staff to summon Scar, Janja and his hyenas kidnap Kiara in an effort to get Kion to roar over the volcano. When kidnapping Kiara didn't work, Janja taunted his archenemy by telling Kion they'll threaten everyone he cares about. Having his anger get the better of him, Kion uses the Roar of the Elders which causes the volcano to erupt and Ushari tries to talk to Scar but to no avail. The cobra informs Janja that their plan seems to have failed, Janja in anger throws Makini's staff into the pit and a spirit rises with Janja trembling at who he thinks it is and the spirit confirms himself to be Scar