Assorted parties, Barbarossa for the British, the Spanish, Blackbeard and Jack Sparrow sally forth in search of The Fountain of Youth.
While an improvement on 2 & 3, we're still a long way from the joys of the first installment. Making Blackbeard more evil would have helped. The tepid romantic business could have been skipped and this is the least interesting 3-D mine eyes have beheld.
On the plus side, Depp, Rush, McNally - always good value - and the mermaids are cute.