For Sancho the penguin and Paolo the lava lizard, life on the Galapagos island is filled with one lazy day after the next. Sancho wants more, and when he finds an egg on the beach, he is ready to claim it as his own. The prospect of being an "uncle" fills him with excitement he can't contain, so he convinces his best friend Paolo to help him. So when the egg hatches and a tortoise emerges, the pair are at first shocked, then smitten with their hatchling. Sancho lovingly names him Darwin.

The years fly by on their peaceful island, and Darwin grows into an intelligent and curious tortoise with a thirst for adventure. An avid inventor, like Sancho, Darwin creates a raft that will take them on their first adventure. They learn of the tortoises on Isabela Island, and before long they are on a quest to find them.

When they are rescued by Admiral Ignatius, a marine iguana, they learn that Queen Esmerelda, a pink marine iguana, is holding the tortoises of the island captive and slowly starving them. Admiral Ignatius is the leader for the rebellion against the queen's rule, but his army isn't large enough to rise up against her. When Darwin formulates a plan that will save everyone on Isabela Island from the queen's rule, the admiral pulls together his troops and they all pitch in to help.

Can one tortoise make a difference against impossible odds? Find out in Darwin, A Galapagos Story.