Eleven-year-old Lorenzo Ventura knows heroes are rare - like his father, who died in the war, or his friend Paloma Lee, who fearlessly pursues her dream of being a famous musician. Renzo would never describe himself as a hero, but his chance comes when he adopts Marty, a runt piglet.

Marty is extraordinary - he thinks he's a dog and acts like one, too - and his bond with Renzo is truly one of a kind. At first, the family farm seems like the perfect home for Marty, but as he approaches 350 pounds, it becomes harder for Renzo to convince his mom that a giant pig makes a good pet. So when Marty causes a dangerous (and expensive) accident, Renzo knows Marty's time is up. He'd do anything and everything for his best friend, but will everything be enough to save Marty? -Fantastic Fiction