Ride along with Seymour E Blox as he travels in an organic submarine named Mimi that travels faster than the speed of sound under water. Help Seymour repair a very famous bridge that is being destroyed by industrial pollution in a large and ancient city. Help Seymour make emergency repairs to the bridge in the middle of the night as the city sleeps. Investigate a strangely shaped building that is used as city hall visit a famous clock tower and much more.