Robert De Niro and Sylvester Stallone return to the ring once more in this sports dramedy from director Peter Segal. Thirty years after their last title fight, two retired Pittsburgh boxers and lifelong rivals decide to step into the ring once more to settle an old score once and for all. But they may not have to wait that long. In their first encounter in decades, their long-festering feud erupts into an unintentionally hilarious melee that instantly goes viral -- and the sudden social media frenzy transforms their local grudge match into a must-see PPV event. Now, if they can just survive the training, they may actually live to fight again.