Players continue Sackboy's journey after the events of the first game and the portable version are brought to an end. An inter-dimensional vacuum cleaner called the Negativitron appears over the skies of LittleBigPlanet and begins to suck up its inhabitants, including Sackboy. Larry Da Vinci (Robbie Stevens), the leader of a semi-secret semi-organised group known as "The Alliance", comes to Sackboy's rescue, saving him from the Negativitron (Jeremy Mayne). The organisation is dedicated to battling with the Negativitron and defeating it before it destroys Craftworld (Alternate name for game's environment). After Sackboy passes the tests in Larry's Hideout, he tells him that they must get to Victoria Von Bathysphere's (Judy Sweeney) Laboratory, since she has built a Sackbot army for the Alliance.