Saw IV was released on DVD in the United States on November 20 2007 after its theatrical debut in October 2007 and it quickly became a staple of the horror collection available for home viewing. The film continues the story after the death of the mastermind Jigsaw and his apprentice Amanda, introduces the murder of Detective Kerry, and follows two experienced FBI profilers, Agent Strahm and Agent Perez, as they join veteran Detective Hoffman to examine the gruesome remains left by Jigsaw and to piece together the clues of his final game. Meanwhile SWAT Commander Rigg is abducted and forced into a deadly series of traps with a ninety minute deadline to rescue an old friend, creating a race against time that drives the tension throughout the movie. The plot intertwines the investigative efforts of law enforcement with the brutal, elaborate traps that are the hallmark of the Saw franchise, delivering a mixture of psychological suspense and graphic violence that fans of the series expect. Highlights include the return of familiar characters such as Detective Hoffman, the introduction of new, highly intricate trap designs that push the limits of the series’ creativity, the moral dilemmas presented to the victims that force them to confront their past sins, and a twist ending that redefines the motives behind the killings. The DVD release includes special features such as behind the scenes footage, commentary tracks from the director and cast, and deleted scenes that deepen the understanding of the complex narrative. The film was added to the website iOctavio.com on January 26 2008, providing another point of reference for collectors and fans seeking information about this entry in the horror series.