When Dana finds a lone Incisivosaurus left behind after some herbivore herds pass by her, she wonders why the dino isn't following its fellow plant-eaters. And while Dana helps Grandma and Saara make jars of tomato sauce for the winter, she becomes determined to figure out what the Incisivosaurus is up to. When Dana gets a cold, she's still determined to complete Dino Experiment 725 - were dinosaurs warm or cold-blooded, despite Ms. Currie's efforts to keep her inside and in bed.