When the humans arrive on Somewhere 513, they discover that the robots sent to prepare the planet for humans want to keep it. One robot, K1-NG, remains loyal but it's a futile battle. Ten years on, Gnat and her sister Paige are the only humans left. Needing help, they go in search of K1-NG, but the once mighty robot isn't keen to be found...

A rousing collection of the most memorable and feel-good shanties in maritime history.