Outro: Next week, The Doctor and Sarah will head back to London from Loch Ness. But fate has a much longer journey planned for the TARDIS: all the way to Zeta-Minor, a planet on the outermost edge of the known universe. What will they find there? That is a matter, or should I say anti-matter, to be discovered next Sunday night at 11 on the "Planet of Evil." [source: ChicagoEpguides]