頑皮小海綿﹝急！急！急！極急！快進

Trouble is brewing in Bikini Bottom. Plankton has stolen King Neptune's crown and has blamed it on Mr Krabs, Spongebob's boss. Spongebob is upset about being turned down for the promotion of his life, but forgives Mr Krabs and sets out to prevent his boss from being executed. However Neptune's crown is in the dreaded Shell City... a sinister place (at least, to the marine world) that sea creatures have rarely returned from. Can Spongebob and Patrick make it through the six-day limit to save Mr Krabs? They'll have to as Plankton has taken control of everyone in town except King Neptune and his daughter, Princess Mindy.

比堅尼島的水底下是一個寧靜的世界，一群海洋生物，包括樂天派小海綿與一眾朋友，他們都過著愉快的日子。直至海王星國王的王冠被盜，擾亂了海底的寧靜。為了尋回王冠，小海綿決定朝著貝殼城進發，展開與別不同的歷險旅程！