Complex sentence: The "Dutchman" re-emerges from the maelstrom with "Captain" Will Turner at the helm, and, along side the "Pearl" faces off against the "Endeavour".
Split into simpler sentences: The "Dutchman" re-emerges from the maelstrom with "Captain" Will Turner at the helm. Joining forces with the "Pearl", the two ships face off against the "Endeavour".