The fifth film is an animated adaptation of the final story of the manga and is also the official ending of the anime series, in which Lum and Ataru must repeat the game of tag played out in the first episode of the television series, or the Earth will be infested with mushrooms larger than buildings. Further, should Ataru lose, Lum will leave forever and everyone's memories will be changed so that they don't remember she, or her friends, were ever there. Finally, Lum refuses to allow Ataru to win unless he says to her those three words "I love you," that he has steadfastly refused to say over the entire series.
Thanks to an untimely demise via drowning, a young couple end up as poltergeists in their New England farmhouse, where they fail to meet the challenge of scaring away the insufferable new owners, who want to make drastic changes.
NYPD cop John McClane's plan to reconcile with his estranged wife, Holly, is thrown for a serious loop when minutes after he arrives at her office, the entire building is overtaken by a group of pitiless terrorists.