Ben and Max have been learning about volcanoes - so they go to see one! But then the volcano erupts. Hot lava is coming to the village, and Rosie's new friend Nani need help. Ben has an idea - but how can they stop the river of fire?
Ben and Rosie take their kayaks to Grandpa's favorite river - but there's a flood! Sam has a pet store in the town, and water from the river is in his store. Can Ben help the animals?