After a terrorist group called the Masked Men bombs the city's police station, Cathal, a young police officer, is thrust into a world of chaos. With the city in turmoil, Cathal takes matters into his own hands, breaking the rules he once followed. Determined to restore order, he embarks on a dangerous mission to hunt down the masked terrorists and bring them to justice, becoming the city's last hope in a relentless battle that tests his bravery and determination.