Episode Title:Night Shift.Episode Description:Theodore and Hank volunteer to do the night shift because the other tugs don't want to stay up all night. When it's time for the night shift, Theodore and Hank have a hard time finding Owan the Oil Rig. Once they move him across the harbor, they try to figure out what is in the water that is making big waves. They soon find out that it's Northumberland Submarine.