South Boston Irish bad boy Danny Quinn returns back home from New York and gets stuck between his pals, who are supported by one Irish mafia clan, and his family, which are members of another.

In early 1980s Manhattan, a pair of Irish-American brothers become embroiled in a conflict with the Irish Mob.

A Boston police officer goes to Nantucket to investigate the murder of his partner, but he finds more than he bargained for.

A year after a supermoon’s light activated a dormant gene, transforming humans into bloodthirsty werewolves and causing nearly a billion deaths, the nightmare resurfaces as the supermoon rises again. Two scientists attempt to stop the mutation but fail, leaving those exposed to the moonlight to once again become feral werewolves. Chaos engulfs the streets as the scientists struggle to reach one of their family homes, now under siege by the savage creatures.