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Blue Bloods makes its third season premiere on Friday, September 28, and the second season of the hit CBS arrives on DVD this Tuesday. Watch an exclusive clip from the DVD's bonus features, in which the cast talks about how the strong family bond displayed between the characters may just be the secret ingredient to the show's success.

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"I love episodes in Blue Bloods where the family all has to rally to the same cause, or is affected by a situation -- if the crime somehow impacts everyone," says Donnie Wahlberg, while Bridget Moynahan explains, "I think different people are responding to different relationships on the show in the family dynamic."

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In Blue Bloods, Tom Selleck plays New York Police Commissioner Frank Reagan, who balances running the city police force with maintaining a close bond with his family. Len Cariou, Jennifer Esposito and Will Estes also star.