Join cousins Beth and Patrick as they are whisked back in the Imagination Station in time to Pompeii so that Patrick can get research done for a science project. First, Beth is upset that she gets left behind, then Eugene Meltsner sees red when he realizes that Patrick went to Pompeii in 79 AD-right before Mount Vesuvius' terrible eruption! It doesn't help that the Imagination Station is on the blink and Whit has gone missing. While Beth and Eugene try to fix the machine, Patrick learns that it's not the lava that comes first out of volcanoes, it's the poisonous gas. Will Eugene be able to reprogram the Imagination Station and send Beth to help Patrick?
