While the Doctor and Romana desperately rack their brains over how to escape E-Space, Time Winds strike the TARDIS, damaging it and K-9. Strangest of all, it allows Biroc, a hurt and hunted lion-man, to enter, phased in time, and set the control coordinates at zero-zero, sending the TARDIS into a milk-white void. Before running off, he warns of others who will be soon...