Lockdown (2008) was a professional wrestling pay-per-view (PPV) event produced by the Total Nonstop Action Wrestling (TNA) promotion, which took place on April 13, 2008 at the Tsongas Arena in Lowell, Massachusetts. It was the fourth under the Lockdown chronology and fourth event in the 2008 TNA PPV schedule. Eight professional wrestling matches, two of which for championships, were featured on the card. In the tradition of Lockdown events, every match took place inside a six sided steel structure known as the Six Sides of Steel.
Kurt Angle
Nuufolau Joel Seanoa
Steve Borden
Kevin Nash
Jason Reso
Terry Gerin
Matt Morgan
Allen Jones
James Cox
Mark LoMonaco
Devon Hughes
Travis Tomko
Robert Roode Jr.
Bonnie Maxson
Booker Huffman, Jr.
Sharmell Huffman
Kia Stevens
Melissa Anderson
Gail Kim
Jessica Kresa
Patrick Martin
Josh Harter
Nelson Rodriguez Erazo
Shawn Hernandez
Lance Hoyt
James Guffey
Frank Gerdelman
Jeremy Fritz
Dustin Runnels
Jon Hugger
Scott Rechsteiner
Peter Williams III
Monty Sopp
Brian James
Trenesha Biggers
Tracy Brookshaw
Christy Hemme
Jacqueline Moore
Shelly Martinez
Nicole Raczynski
Lauren Williams
Jamie Szantyr
Daniel Covell
Retesh Bhalla
John Parsonage
Dean Roll
Jamar Shipman
Austin Watson
Paige Nicole Mayo
Héctor Guerrero