Lockdown 2008 was a professional wrestling pay-per-view (PPV) event produced by Total Nonstop Action Wrestling (TNA), which took place on April 13, 2008 at the Tsongas Arena in Lowell, Massachusetts. It was the fourth annual event under the Lockdown chronology. Eight professional wrestling matches were featured on the event's card. In the tradition of Lockdown events, every match took place inside a steel structure with six sides, known as Six Sides of Steel.
The main event was a Six Sides of Steel cage match for the TNA World Heavyweight Championship, in which Samoa Joe defeated the reigning champion, Kurt Angle, to win the championship. Following another tradition of Lockdown events, TNA held the annual Lethal Lockdown match, which was contested inside a steel structure with a flat roof; in this match, Team Cage defeated Team Tomko. Two featured bouts were scheduled on the undercard. In an intergender tag team match, Booker T and Sharmell defeated Robert Roode and Payton Banks. The other bout was an Xscape match for the TNA X Division Championship, in which six competitors fought to eliminate each other by pinfall or submission until there were two left; the remaining two then fought to escape the steel structure. Jay Lethal defeated five opponents in this match to retain the championship.
The event marked the fourth time the Lethal Lockdown format was used by TNA, and the first time a World Championship was contested in a Lockdown main event. When the event was released on DVD, it reached a peak position of number five on Billboard's DVD Sales Chart. The professional wrestling section of the Canadian Online Explorer website rated the entire event a 6.5 out of 10 stars, one star higher than the 2007 event.
- Numbers in parentheses indicate the length of the match.
- (c) refers to the champion(s) heading into the match.
- Jay Lethal (c) defeated Johnny Devine, Shark Boy, Sonjay Dutt, Curry Man, and Consequences Creed in a Xscape match for the TNA X Division Championship (10:25)
- Roxxi Laveaux defeated Angelina Love, Velvet Sky, Salinas, Rhaka Khan, Traci Brooks, Christy Hemme, and Jacqueline in a Queen of Cage match for number one contendership to the TNA Women's Knockout Championship (5:27)
- Super Eric and Kaz defeated The Motor City Machine Guns (Chris Sabin and Alex Shelley), The Latin American Xchange (Homicide and Hernandez), Scott Steiner and Petey Williams, The Rock 'n Rave Infection (Lance Hoyt and Jimmy Rave), and Black Reign and Rellik in a Cuffed in the Cage match for a future TNA World Tag Team Championship match (10:41)
- Team Cage (Christian Cage, Kevin Nash, Rhino, Sting, and Matt Morgan) defeated Team Tomko (Tomko, A.J. Styles, Team 3D (Brother Ray and Brother Devon), and James Storm) (w/ Jacqueline) in a Lethal Lockdown (26:27)
- Samoa Joe defeated Kurt Angle (c) in a Six Sides of Steel match to win the TNA World Heavyweight Championship (17:34)
- Xscape match eliminations
|1||Sonjay Dutt||Johnny Devine||Pinfall by a roll-up||2:47|
|2||Shark Boy||Consequences Creed||Pinfall after a Creed-DT||4:30|
|3||Consequences Creed||Curry Man||Pinfall after a Spice Rack||7:12|
|4||Curry Man||Johnny Devine||Pinfall after a Devine Intervention.||8:32|
|WINNER||Jay Lethal||n/a||Lethal escaped the cage with help from Dutt and SoCal Val||10:40|
- Cuffed in the Cage eliminations
|1||Scott Steiner||Rellik, Black Reign, Lance Hoyt, and Kaz|
|2||Alex Shelley||Petey Williams|
|8||Jimmy Rave||Super Eric|
|9||Lance Hoyt||Super Eric|
|11||Black Reign||Super Eric|
- Lethal Lockdown entrances
|1||Christian Cage||Team Cage||00:00|
|2||A.J. Styles||Team Tomko||00:00|
|3||Brother Ray||Team Tomko||05:00|
|5||James Storm||Team Tomko||09:00|
|6||Kevin Nash||Team Cage||11:00|
|7||Brother Devon||Team Tomko||13:00|
|8||Matt Morgan||Team Cage||15:00|
|2008 Total Nonstop Action Wrestling pay-per-views|
|Final Resolution (Jan) • Against All Odds • Destination X • Lockdown • Sacrifice • Slammiversary|
Victory Road • Hard Justice • No Surrender • Bound for Glory • Turning Point • Final Resolution (Dec)
|2005 • 2006 • 2007 • 2008 • 2009 • 2010 • 2011 • 2012 • 2013 • 2014|