Law enforcement in Fitzgerald Bay is full of Fitzgeralds, from the chief of police to brand-new detective Keira Fitzgerald. Are they tampering with a murder investigation to protect one of their own? Internal affairs detective Nick Delfino is sent undercover to investigate the powerful clan. Yet the deeper he digs, the more Nick comes to admire the Fitzgeralds especially his rookie partner, Keira. When a killer targets Nick, can he maintain his cover, catch his attacker and protect Keira while the looming danger closes in?