|"Nothing to Lose" (Operator)|
|Promotion||Total Nonstop Action Wrestling|
|Date||April 13, 2008|
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 Center at 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 Dustin Simpson defeated the reigning champion, Matt Borske, 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 Hunt defeated Team Kanta. Two featured bouts were scheduled on the undercard. In an intergender tag team match, Steve Britz and Tia George defeated Martin McAlmond and Ashley Martin. 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. Aaron Fisher-Armstrong 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.