A family trip to South Africa means an amazing adventure for Mandy and James. They can't wait to go on safari! A violent storm causes chaos at the lodge where Mandy and James are staying. When they go outside the resort to check on the damage, they find a mother hippo in distress, standing guard over her trapped calf. The wardens' attempts to rescue the baby hippo fail when their jeep gets stuck in the mud. But if they don't free the baby soon, he and his mother will die. Can Mandy help the hippos?