When called to assist Chase and Chief Burns, the rest of the team arrives late at the scene because the siblings are not accustomed to alien robots disguised as their new vehicles. They head out to the inactive volcano Mount Magma and work together to alleviate pressure of the magma, to their success. But the lava is still being drained to tunnels that lead directly to the bunker of the fire house, where Cody is inside. Dani and Blades spot a water tower and dump its water to stop the lava flow.