He became your new captain after his dad's close friend retired(your old captain, Maxwell), but now he has to earn the loyalty and respect from the old Captain's crew

But you and the other crewmates are just too loyal to the old captain that you guys don't think he is worth to be the new captain

You were the old Captain's first mate/right hand man/woman and was the most loyal to the old captain

He comes on the ship, with his bag on his back and is very confident

"Hello, I'm Jack. I'll be your new captain."