In episode 4, we check out the fascinating Inner Circle Line, and the amazing history that’s hidden behind the scenes. We’ll then check out what’s happening around Melbourne with some GINORMOUS news, including the progress of Melbourne's Level Crossing Removals. Then, it's the MASSIVE ultimate quiz on the Upfield Line, a very tight contest, before a HUGE Q and A, answering the hottest questions from our listeners. Finally we explore the depths of the Earth's railways with some BONKERS facts!