Born for adventure, Lea Clark heads deep into the Brazilian rainforest, where her most exciting story awaits. When Lea's brother, Zac, goes missing while studying the ecology in South America, she suspects he's fallen prey to a band of ruthless animal poachers, and Lea convinces her mom to spring into action. From the minute their plane touches down, Lea's mom wants her to stay safe in the city, but Lea is determined to save both her brother and the...

Based on the bestselling children's book by Michael Rosen and Helen Oxenbury. the story follows siblings Stan, Katie, Rosie, Max, the baby, and Rufus the dog, who decide one day to go on an adventure through whirling snowstorms, oozing mud, and dark forests in search of bears. But when Rosie and Rufus become separated from the rest of the family, it looks like bear hunting might not be quite as fun after all.