Hard Knocks Season 13 Episode 1 | Watch Hard Knocks Season 13 Episode 1 | Hard Knocks Season 13 Episode 1 - Training camp with the Cleveland Browns br . br Watch Full@ br br Synopsis: Hard Knocks on HBO presents viewers with an inside look at NFL training camps. From the top coaches to the rookies trying to make the team, Hard Knocks will showcase what it takes to be in the NFL.