The drama, which is being produced by Jerry Bruckheimer, focuses on a mother called KJ who becomes a New York state trooper.
Hernandez has now landed the male lead in the project, Deadline says.
He is expected to play KJ's new partner, who moves to New York from Miami following the death of his wife.
Hernandez has previously appeared in Hang Time and Six Degrees, while his movie credits include Friday Night Lights, Hostel and World Trade Centre.
Mira Sorvino is reportedly in talks to take on the lead role of KJ in Trooper.