Leo is now an adult wolf. One year and two months old. And so is his sister, Stella. There Mother retired, leaving Stella as the beta. The alpha later on retired too, making Stella rise up, and become alpha. And since she had no puppies, her little brother would become beta.
So now it was alpha Stella,
and beta Leo. Leo's leg was still brocken until last month, but he still had to take it easy. But he took it easy for a month already! He wanted his revenge!

"Leo?" Stella said, as Leo began to walk away from the center of the territory. "Yes?" Leo turned to his sister. "Where are you going?" She asked. "To visit great grandfather" Leo lied. Stella nodded and walked off. Leo fast walked to his great grandfather's den. He hoped to come across Ursa on the way. And he did.

"Long time no see, Leo" Ursa said as he walked from behind a tree. Ursa was old now. He might have had grandcubs. "I have come for my revenge! You broke my leg, and hurt my pride, and it took five months to heal. Now, I want a rematch." Leo growled, and stood up proudly.
Ursa laughed. "I think you were just waiting for me to get old. But I except your challenge" Ursa chuckled.
Ursa and Leo, charged at each other, but as Leo ran, pain shot up his leg. He was told to take it easy, but he didn't listen. He fell to the floor, and Ursa grabbed him by the back, and threw him against a tree.
"I told you I'd take it easy because you were a pup, but too bad now, your an adult" Ursa said. Leo quickly limped away, and back to the pack. He explained to his sister how he had lied. "Stop fighting him. I don't want to hear of this again." Stella told her bother. Leo nodded. "I will try"