Arne Dahl: De största vatten () is a Swedish miniseries broadcast from February 18, 2012 to February 22, 2012 and directed by Tova Magnusson. It is the second miniseries and the fourth part of Arne Dahl's franchise.The miniseries is an adaptation to the screen of the novel "Arne Dahl: De största vatten" by the Swedish author Jan Arnald, who sometimes signed under the pseudonym "Arne Dahl" published in 2002. The miniseries is preceded by Arne Dahl: Upp till toppen av beget and succeeded by the Arne Dahl: Europa blues.