Two 12-year-olds, who live on an island, fall in love with each other and elope into the wilderness. While people set out on a search mission, a violent storm approaching them catches their attention.
A writer encounters the owner of an aging high-class hotel, who tells him of his early years serving as a lobby boy in the hotel's glorious years under an exceptional concierge.
With a plan to exact revenge on a legendary shark that killed his partner, oceanographer Steve Zissou (Bill Murray) rallies a crew that includes his estranged wife, a journalist, and a man who may or may not be his son.