Concerned about Harry's weight gain and lack of exercise, his pet hamster arranges for him to spend a month at a unique camp, where Harry is transformed into someone who understands that eating right and staying in shape can be fun.
A serving girl, disappointed that her childhood friend is becoming a copy of his proud and unforgiving father, the Duke, helps him to see that the unicorn sought by the Duke's hunting party is too precious to kill.
When he and his brother Josh find a mer-baby caught in their fishing net, Tarron, rejecting his brother's plan to sell the baby and make a profit, discovers that there are greater treasures than gold.