The year is 2014. Belfast based PSNI Sgt. Olivia Thompson has just been promoted to the rank of detective. However, her celebrations are short-lived as just hours later, the city is rocked by explosions targeting three separate Eleventh Night bonfires. Thrown headfirst into the investigation, Olivia's headstrong methods inadvertently place herself and her colleagues in grave danger whilst unearthing more than she could have possibly imagined.