Navy's Blue Angels were the stars of the Seattle Seahawks' first 'Hard Knocks' episode: 'America!'

The Seattle Seahawks are allowing the NFL's annual "Hard Knocks" series to take us behind the scenes and the first episode with the defending Super Bowl champions gave us a peek of the first day of training camp, the first day of padded practice, and the Navy's Blue Angels stealing the show.

The Blue Angels typically play no role in an NFL training camp.

But somehow, at the climax of Tuesday night's episode, there they were roaring across the sky over the Seahawks and making some of...