Trixie and Daddy Olly go on a journey of discovery to find out what life was like for a ship's boy nearly 500 years ago. Trixie and Olly dress up in clothes from that time and together they find out about a boy called Francis Drake, who became a famous sailor when he grew up. Trixie and Olly try out the types of food that sailors would have eaten, including some very hard ship's biscuits! Then, they discover why sailors had to be good at sewing. Together they visit a big ship just like the one Francis went on and find out all about the sorts of jobs a ship's boy had to do. Finally, they go looking for treasure!