Kion and the Guard take on the ultimate challenge when a ruthless enemy returns to the Pride Lands and threatens the Circle of Life. With the arrival of the Dry Season, tensions run high, patience wears thin and thirsty tempers flare. To make matters worse, Janja's hyenas, aided by Ushari the snake, discover a secret that could bring back the vengeful spirit of the legendary villain, Scar! Now it's up to the Lion Guard and their new friend â Rafiki's young apprentice, Makini to defend the Pride Lands against the toughest foe they've ever faced!