The crew of Haunted Ends is diverted from filming their show when a cursed and extremely haunted pirate ship, the Serpents Cross, docks off the coast of San Francisco. After repeated attempts by the Coast Guard to tow the pirate ship back to the sea have left many hospitalized, they call Rocky and Sam to help. The paranormal duo must persuade the Serpents Cross' phantom captain to leave San Francisco Bay peacefully. However, if the Captain's requests are not satisfied, he has deadly plans for the citizens of San Francisco.