Enthusiasm is building for the 2021 Cowboys as head coach Mike McCarthy, in his second season, welcomes an intriguing mix of established veterans and highly regarded rookie hopefuls. As training camp begins, all eyes are on Dak Prescott, who suffered a compound right ankle fracture and dislocation in week 5 last season. Dak also celebrates his birthday with his teammates.

After an intense scrimmage against the Rams, the Cowboys get well-deserved downtime at training camp.

The Cowboys are welcomed back in Dallas as they prepare for action on their home turf. Plus, the rookies learn valuable lessons from the team’s top veterans.

As the temperature rises during practice, the team finds ways to bond off the field. Meanwhile, some players have one last chance to make an impression.

Stress levels reach an all-time high as the players prepare for roster cuts.

On the season premiere, cameras head to southern California to chronicle preparations by the Chargers and Rams organ­izations as the players and coaches return to work amid the new COVID-19 protocols.

Veterans spend rare down time getting to know each other better and rookies push for any chance to prove themselves worthy of making the team.

The sports world comes to a halt after the shooting of Jacob Blake and protests in Kenosha, WI.

As cut day looms, veterans and rookies have one final chance to stake their claim on the team.

Enthusiasm is building for the 2019 Raiders. Head coach Jon Gruden, in his second season since returning to Oakland, welcomes an intriguing mix of established veterans, highly regarded rookie hopefuls and free-agent acquisitions. The big off-season signing of former Pittsburgh Steeler Pro Bowl WR Antonio Brown has everyone around the team excited. Competition in training camp will be fierce.

The Los Angeles Rams visit Napa to play scrimmages against the Oakland Raiders ahead of their first preseason game. Jon Gruden reflects on hiring and mentoring Sean McVay when he was the head coach of the Tampa Bay Buccaneers.

The grind and intensity of training camp sets in at the Raiders training camp facility in Napa. The Raiders travel to Arizona to take on the Cardinals in their second preseason game.

“The first sports-based reality series” in television history 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.

“The first sports-based reality series” in television history 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.

Training camp begins as 90 players compete for 53 spots, but all eyes are on QB Baker Mayfield. General manager John Dorsey and head coach Hue Jackson welcome a new batch of veteran acquisitions, including QB Tyrod Taylor and receiver Jarvis Landry.

The grind and intensity of training camp produces flare-ups for both players and coaches on the practice field. The Browns play host Tyrod Taylor’s former team, the Buffalo Bills, in their second preseason game.

Star receiver Josh Gordon returns while players on the margins fight for their place on the team.

Former Heisman winner Jameis Winston, outspoken DeSean Jackson and Pro Bowl perennial Gerald McCoy, along with rookies and free agents, go through the first week of drills at Buccaneers training camp.

Third-year QB Jameis Winston displays his leadership on the field and in the locker room; kicker Roberto Aguayo learns his fate; Brent Grimes has a revealing conversation with his wife, Miko; players and coaches get game-time action as the Buccaneers travel to Cincinnati to play the Bengals.

Jameis Winston leads the Buccaneers to Jacksonville for practice sessions and a nationally televised preseason game with the Jaguars; competition heats up as 90 players vie for 53 roster spots.

Jameis Winston and the first team unit prepare for the home preseason clash with the Cleveland Browns; the rookie talent show takes place at camp.

Jameis Winston, Gerald McCoy, Mike Evans and DeSean Jackson prepare for the regular season. Rookie hopefuls Riley Bullough, aka "Joe Dirt," and Jeremy McNichols, aka "McWeapon," hope to survive the final cuts, when 37 players will lose their jobs.

The NFL meets Hollywood as the Rams move to Los Angeles with little time to spare in their quest to build an NFL roster and establish a new tradition in Southern California.

The Los Angeles Rams mark their first home game at the venerable Memorial Coliseum in more than 35 years with the preseason opener versus the Dallas Cowboys.

Reigning Defensive Player of the Year J.J. Watt and his fellow Texans kick off training camp in Houston. Head coach Bill O'Brien leads 90 players through the first week of drills, and the team travels to Virginia, where they practice against the NFC East's Washington Redskins.

Rookies and veterans show some style and the team gears up for its preseason slate with a home game against the San Francisco 49ers.

Jadeveon Clowney, the first pick of the 2014 draft, returns to the field after a long recovery from surgery; Peyton Manning and the Denver Broncos visit NRG Stadium for the Texans' second preseason game.

The Texans begin reducing the roster in preparation for getting down to 53 players by opening day. The team travels to New Orleans to meet Drew Brees and the Saints in the third week of preseason play.

The Texans travel to Dallas for their final preseason game against the Cowboys. The coaching staff reduces the roster to 53 players in preparation for the Sept. 13 regular season opener with Kansas City.

Head coach Mike Smith and a roster of 90 players kick off training camp in Flowery Branch, GA. Coaches take the Atlanta Falcons through the first week of on-field drills as the team prepares for the 2014 regular season in the challenging NFC South division.

General manager Thomas Dimitroff outlines his view on the 2014 roster; linebacker Sean Weatherspoon is profiled; the Falcons scrimmage with the Tennessee Titans in Flowery Branch as they prep for their opening preseason game against the Miami Dolphins at the Georgia Dome.

With jobs on the line, the Falcons fly to Houston to scrimmage the Texans before their second preseason game. Also: competition heats up for the backup quarterback job.

The intensity of training camp heats up as fifteen players are cut from the roster and veterans prepare for the regular season. Also: a thunderstorm sends the team heading for cover.

The preseason comes to a close as the Falcons head to Jacksonville to face the Jaguars; coaches evaluate performances as they prepare for final cuts.

In the eighth-season opener, the team assembles in the Queen City and kicks off training camp at Paul Brown Stadium.

The Bengals travel to Atlanta and practice with the Falcons prior to their Aug. 8 meeting in the Georgia Dome.

Training camp accelerates, and the Tennessee Titans of the AFC South visit Paul Brown Stadium for the Bengals' first pre-season home game.

The Bengals travel to Dallas for a preseason encounter with the Cowboys; the coaching staff meets to make important roster decisions as the deadline approaches.

In the season finale, the preseason comes to a close as the Bengals prepare to face the visiting Indianapolis Colts; coaches evaluate player performances as they prepare for final roster cuts.

The new identity of the Miami Dolphins under first-year head coach Joe Philbin begins to take shape as the team assembles for the start of training camp in Davie, Fla. Coaches take players through week one of on-field drills.

Training camp in South Florida heats up as players and coaches look back at their first preseason game, against Tampa Bay. The game recap will include exclusive NFL Films audio and video.

Coaches review the Carolina pre-season game; roster positions are evaluated; the competition for wide receiver positions heats up.

As tensions mount to make the 53-man roster, HARD KNOCKS reviews the pivotal pre-season encounter against the Atlanta Falcons; the game recap will include exclusive NFL Films audio and video.

The pre-season comes to a close as the Dolphins travel to Dallas to play the Cowboys; coaches evaluate players as they prepare for final roster cuts.

In the opener of the sixth season, Jets players and coaches arrive in Cortland, N.Y., and settle in to their new quarters before beginning two-a-day drills. Included: head coach Rex Ryan sets an ambitious goal for the season; Darrelle Revis is a no-show; the first cuts are made; Marty Schottenheimer and Joe Namath visit camp.

The defense struggles in the second half of the Jets' preseason opener against the Giants at New Meadowlands Stadium; WR Santonio Holmes gives advice to struggling rookie RB Joe McKnight; the fullback battle continues; Vernon Gholston impresses the coaching staff; Darrelle Revis's holdout continues.

The team breaks camp in Cortland, N.Y., and heads to Charlotte to meet the Carolina Panthers in their second preseason game; Nick Mangold signs a contract extension but Darrelle Revis's holdout continues; one player suffers a severe injury in the Panthers game.

The team visits Long Island for a scrimmage at Hofstra University and faces the Redskins in its third preseason game. Also: a key player gets hurt; a respected veteran is cut as the roster is pared to 75 players; the battle at left guard heats up; the offense continues to struggle.

Players get a last chance to impress the coaches in the preseason finale against the Eagles; some tough cuts are made as the roster is pared to 53 players; negotiations heat up with holdout Darrelle Revis; Mark Sanchez calls plays against the Eagles and directs a TD drive.

The first week of Cincinnati Bengals training camp.

The second week of Cincinnati Bengals training camp.

The third week of Cincinnati Bengals training camp.

The fourth week of Cincinnati Bengals training camp.

The fifth week of Cincinnati Bengals training camp.

An Insight into the training camp of "Americas Team", the Dallas Cowboys. This episode looks at the players arriving at camp, and how a group of players, each with different experience and expectations cope with camp life.

Week 2 of training camp continues. We find out where a Cowboy goes for the freshest threads? Plus, linebacker Anthony Spencer continues to impress the coaching staff.

Terrell Owens shows off his leadership skills with the young wide receivers. The Cowboys travel to Denver for heated practices and a pre-season game against the Broncos.

Jerry Jones gives a behind-the-scenes look at the new Dallas Cowboys stadium being built. The Cowboys take on the Texans in their 3rd pre-season game. Bobby Carpenter steps up on defense. And the first cuts are made

In the season finale of Hard Knocks the team has it's final pre-season game against the Vikings. Final cuts are made and the practice squad is formed. And Adam Jones finds out his fate from the league.

The K.C. Chiefs enter training camp under coach Herm Edwards. The team must deal with a battle at the QB position, a hold out by a star player, and many players fighting for positions.

The QB battle between Damon Huard and Brodie Croyle continues. 1st round pick Dwayne Bowe finally reports for camp, and the hazing begins.

The coaching staff continues to struggle with picking a QB while they deal with their 2nd straight preseason loss. Training camp also moves from Wisconsin to Kansas City.

The Chiefs begin the process of cutting players, including veteran Rod Gardner. After another preseason loss head coach Herm Edwards makes the difficult decision on who his starting QB will be.

The countdown to the final cuts begin with Bobby Sippio, Boomer Grigsby, Derrick Ross, and Tyron Brackenridge all on the bubble. The team attends a booster luncheon the day before the final preseason game versus St. Louis. The team needs to make a tough decision on one-time superstar Priest Homes.

Out-takes from training camp. The team learns to deal with being documented so intensely.

New Cowboys coach Dave Campo explains his rules for training camp to the team. Several players tensions rise for a spot on the 53-man roster. There is also a look into the Dallas Cowboy Cheerleaders bond.

The competition heats up as preparations for the 2002 season begin in earnest. The rookies face their first live test in a scrimmage against their in-state rivals, the Houston Texans.

Dallas plays its first preseason game and for some cowboys, it's their last game. The competition for starting quarterback heats up as Quincy Carter is challenged by newcomer Chad Hutchinson.

The Cowboys enjoy some good, clean fun before the "hard knocks" resume and injuries affect key members of the 2002 roster.

The Cowboys wind down training camp in San Antonio as the rookies battle for the few remaining spots on the roster.

It's the last week for players on the bubble as the final 53-man-roster is chosen and the Cowboys prepare to begin their 2002 season.

The players from the defending Super Bowl champion Baltimore Ravens leave their homes and arrive at training camp.

The practical jokes heat up at training camp. Also the team and it's coaching staff has to deal with the season ending injury of star running back Jamal Lewis.

The team begins to battle the extreme heat. The search for a new running back continues.

Tony Siragusa take out some of the rookies to his restaurant. The Ravens compete in their second preseason game.

The Ravens coaches go through their first-round cuts. The team's rookies stage a talent show where they mock several of the veteran players.

The coaches make their final round cuts, as players wait in suspense. Training camp ends and the players head for home.

Preview of the HBO series of NFL summer camps ... this year, the New York Jets before their much anticipated 2010 season ... Rex Ryan & company want to make the next step and reach the Super Bowl ... high expectations in the big apple ... with Mark Sanchez, Shonn Greene, Braylon Edwards, Nick Mangold, Darrelle Revis, Bart Scott, Kris Jenkins and the new arrivals Santonio Holmes, Antonio Cromartie and Jason Taylor ...

It's been ten years since HBO Sports and NFL Films debuted 'Hard Knocks: Training Camp with the Baltimore Ravens.' In the decade since, 'Hard Knocks' has gone inside the locker room of five different teams, twice with the Dallas Cowboys. Every season has provided unprecedented inside access to players and coaches from the NFL and plenty of memorable moments-from Emmitt Smith preparing for his final season, to Chad Ochocinco inventing catchphrases seemingly on the fly, and Rex Ryan's famous "Let's go get a goddamn snack" speech.