Not solely is Joe Hill a brand new character on Blue Bloods, however he’s a brand new grandson to the Reagan household. There have been a pair storylines converging that led to the invention of Joe Hill as a brand new member of the Reagan household. Not solely did his cousin, Sean, uncover he had a long-lost cousin, however Paula, Joe’s mother, tries to persuade Frank Reagan to place Joe on a much less harmful case. She lastly reveals that he’s Frank’s grandson to attempt to sway him.
The explanation nobody is aware of Joe Hill is expounded to Frank earlier than it is because their relation is thru Joe’s deceased father, Joe Reagan. Joe Reagan’s girlfriend, Paula, was pregnant when Joe Reagan died by the fingers of corrupt cops. Paula stored her son, Joe, from the Reagans, and hid his cop legacy; nonetheless, Joe determined to develop into a cop anyway, carrying on the household legacy.