So, we've known the fifth "Pirates of the Caribbean" film is called "Dead Men Tell No Tales," helmed by Kon-Tiki directors Espen Sandberg and Joachim Rønning and stars Johnny Depp, Javier Bardem, Kaya Scodelario and Brenton Thwaites, but what is it actually about?

Thanks to a recent press release from Disney trumpeting the start of filming in Australia, we now have the first synopsis:

Thrust into an all-new adventure, a down-on-his-luck Captain Jack Sparrow finds the winds of ill-fortune blowing even more strongly when deadly ghost pirates led by his old nemesis, the terrifying Captain Salazar (Bardem), escape from the Devil’s Triangle, determined to kill every pirate at sea…including him. Captain Jack’s only hope of survival lies in seeking out the legendary Trident of Poseidon, a powerful artifact that bestows upon its possessor total control over the seas.

The announcement also confirms the return of Geoffrey Rush as Barbossa, Kevin R. McNally as Joshamee Gibbs and Stephen Graham as Scrum, and adds franchise newcomer Golshifteh Farahani ("Exodus: Gods and Kings") in an undisclosed role.

"Pirates of the Caribbean: Dead Men Tell No Tales" arrives July 7, 2017.