The second episode of Hard Knocks, featuring the Buffalo Bills, aired on Tuesday night, as fans were given another inside look at one of the NFL's top Super Bowl contenders.

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The second episode of "Hard Knocks: Training Camp with the Buffalo Bills " has some intrigue. Running back James Cook decided not to practice last week as he seeks a new contract and the Bills had their first preseason game. Both topics could get airtime on Episode 2.