Pororo and his friends are an inch away from winning a singing contest which they joined purely for fun. As they advance closer and closer to the final round, the villain Big Ben’s petty jealousy grows. Will Pororo and his friends survive the distractions thrown against them by Big Ben and eventually win the superstar contest?

In pursuit of her lifelong dream of becoming a writer, Yumi takes the bold step of quitting her job to focus on preparing for a novel contest. From the Schedule Cell meticulously planning her writing schedule to the Writer Cell tirelessly seeking inspiration and the Cheapskate Cell tightening the purse strings, every cell works diligently to support Yumi in her aspirations. Yet, as worries about the future begin to mount, Anxiety Cell looms larger, casting a shadow over Yumi’s determination. Even the Love Cell, once sweet and hopeful, turns bitter and skeptical as her relationship with Babi hits rough patches. With conflicts among the cells intensifying, the Cell Village finds itself confronting a crisis unlike any it has faced before…

Pororo and his friends were having fun when a little red dragon named Arthur appears above them. Arthur, who claims to be the king of dragons, commands Pororo and his friends to search for his Dragon Heart. Just then, the jewel Arthur has brought emits a magical force that turns Crong into a giant dragon, while a mysterious light from the sky abducts Pororo and his friends to the Dragon Castle. It turns out that Ged the Wizard has taken over Arthur’s throne, in an attempt to capture Crong for the Dragon Heart. Would Crong and his friends be able to return home safely?