Blue Bloods Is Back!

In the 13th season of Blue

Bloods (Oct. 7 on CBS), Bridget Moynahan is back as Erin, the sole daughter of police patriarch Frank Reagan (Tom Selleck). And now Erin is running for Manhattan District Attorney, the top spot in an agency of legal eagles that her family of boots-on-theground cops often sees as the opposition. “This obviously puts Erin in a difficult position,” says Moynahan, 51, who’s marking her 12th year on the hit series. “It will automatically give the writers an opportunity for tension and awkwardness. I’m looking forward to seeing how the storyline unfolds.”