Aiden devoted thirty years of his life to the NYPD wherein he worked aggressively as a street cop and homicide detective. Friends and colleagues affectionately dubbed him 'The Hammer'. His retirement from the NYPD was a bittersweet turning point in his life. In 2015, Aiden decided to retire and live a quiet life with his wife, Alexis, in the fictional small town of Hill Valley, Tennessee. What began as a quiet and seemingly perfect retirement quickly turns into a world filled with rage and grief as a result of the brutal murder of Aiden's wife by his neighbour's son, Taylor. Aiden soon discovers that Taylor, a convicted felon and drug dealer, murdered Alexis. Aiden also learns about Taylor's best friend, Grant Seaton, the corrupt sheriff of Hill Valley, having tampered with evidence at the crime scene. Aiden secures the assistance of his old friend and cherished former partner, Patrick Feeley. The two men reunite and combine forces to seek vengeance against Taylor and Seaton. Aiden takes extreme risks along with Feeley to execute his brilliant plan.
The conflict in Aiden's life finds no end as he is later faced with combating drug trafficking in Hill Valley. Making matters worse is the fact that two new enemies, a convicted felon from his past and the head of a local drug cartel, set their sights on Aiden. As a result, Aiden is forced to make life-and-death decisions.