Disclaimer: I don't own POTC. Grr.
Here is the reveal about BBT.
Will awoke to the unpleasant sights and smells of a cell. Next to him was the feared Captain Jack Sparrow, drooling like a baby. He remembered the fight on the dock and wondered what had happened since then. There was a pain on the back of his head. He reached back and felt blood dried there. This was not a good scenario.
Who was this second Barbossa? All he knew was that it was Barbossa's son and he wanted revenge for his father's death. But how had he known that they were in Tortuga? Jack hadn't given his name and yet he knew who both of them were. He had talked about sensing them, and he had mentioned Bootstrap Bill.
It had been right before his wedding to Elizabeth that he had learned that his father was alive. It had been a big sock to him. Everything in Port Royal was normal until Jack had turned up with the Pearl. Apparently, Davy Jones had a disagreement with Jack and wanted his blood. So, Jack turned to his non-pirate friend to help him out.
During the new adventure Jack had gotten him arrested at a port. He was thrown into a cell that was empty. The one next to his had a man in it. An officer came in and asked Will about Jack Sparrow. This caught the attention of the other man. Will remembered the conversation.
"Where is the pirate that was with you, Jack Sparrow?" The man looked up, interested.
"I don't know what you're talking about. I was falsely arrested and demand to be let go." It was true. Jack was the one that had stolen the purse. He'd just left it with Will when the officers arrived.
"Here's the thing. We let you go if you tell us where Sparrow is. Otherwise you hang. Which'll it be?"
"Don't tell 'em, boy," he man said. "I knew Jack once. He's a good man. For a pirate."
"And wouldn't you know that, pirate. You want him to hang so you have company tomorrow. Death is usually a lonely thing. Unless it's a curse." Now Will was interested.
"It's the truth. We found the treasure of Cortez and it placed a curse on us. We couldn't die by sword or musket. We didn't even need to breath underwater."
"And yet when we arrested you the knife wound you had almost did just that. I'll see you in the morning."
"I suppose you don't believe the story of the Black Pearl," the man said to Will.
"I do. I was part of it."
"Really? How's that? You part of Sparrow's crew? I hear he got himself his ship back."
"He did, after we ended the curse." The man sat bolt upright.
"You helped end the curse? Impossible." Will held out his hand, showing the faint scar from the fateful day. "What is your name, I wonder?"
"William Turner." The man stood frozen, and came into the light. He looked closely at Will, studying his face.
"Like a mirror back in time. I am Bill. Bootstrap Bill Turner."
That was when Jack had 'rescued' them. After that reunion, Will hadn't seen his father for almost half a year. He had attended the wedding, in secret, and arrived once at their house with his own ship. He claimed he was going to try to be a merchant. But if he was at Tortuga like Barbossa Junior had said, then it was doubtful.
In his mind, Will wished his father away. No need for both of them to get killed. But if he and Jack could get free, they might have a chance at survival.
Sorry this was short. I'll try to fatten the next one up a bit.